diff --git a/keyboards/sirius/uni660/rev1/config.h b/keyboards/sirius/uni660/rev1/config.h
index 06f1c78100..98269d4261 100644
--- a/keyboards/sirius/uni660/rev1/config.h
+++ b/keyboards/sirius/uni660/rev1/config.h
@@ -20,26 +20,23 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "config_common.h"
 
 /* USB Device descriptor parameter */
-
-#define VENDOR_ID       0x5352			// "SR"
-#define PRODUCT_ID      0x0201			// Second Product First Version
-#define DEVICE_VER      0x1912			// 2019.12
-#define MANUFACTURER    SiRius
-#define PRODUCT         SiRius Uni660
-#define DESCRIPTION     SiRius Uni660
+#define VENDOR_ID    0x5352 // "SR"
+#define PRODUCT_ID   0x0201 // Second Product First Version
+#define DEVICE_VER   0x1912 // 2019.12
+#define MANUFACTURER SiRius
+#define PRODUCT      Uni660
 
 /* key matrix size */
 #define MATRIX_ROWS 5
 #define MATRIX_COLS 16
 
-/* define if matrix has ghost */
-//#define MATRIX_HAS_GHOST
-
-/* number of backlight levels */
-//#define BACKLIGHT_LEVELS 3
-
 #define ONESHOT_TIMEOUT 500
 
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+//#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+//#define LOCKING_RESYNC_ENABLE
+
 /*
  * Feature disable options
  *  These options are also useful to firmware size reduction.
@@ -55,8 +52,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define NO_ACTION_LAYER
 //#define NO_ACTION_TAPPING
 //#define NO_ACTION_ONESHOT
-//#define NO_ACTION_MACRO
-//#define NO_ACTION_FUNCTION
+
+/* disable these deprecated features by default */
+#define NO_ACTION_MACRO
+#define NO_ACTION_FUNCTION
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 1000000
@@ -65,14 +64,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
 #define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+    /* baud rate */ \
+    UBRR1L = SERIAL_UART_UBRR; \
+    /* baud rate */ \
+    UBRR1H = SERIAL_UART_UBRR >> 8; \
+    /* enable TX and RX */ \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /* 8-bit data */ \
+    UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
+} while (0)
 
 #define DYNAMIC_KEYMAP_LAYER_COUNT 4
diff --git a/keyboards/sirius/uni660/rev1/keymaps/default/keymap.c b/keyboards/sirius/uni660/rev1/keymaps/default/keymap.c
index 336aa84108..459bb7c238 100644
--- a/keyboards/sirius/uni660/rev1/keymaps/default/keymap.c
+++ b/keyboards/sirius/uni660/rev1/keymaps/default/keymap.c
@@ -1,11 +1,11 @@
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-[0] = LAYOUT( /* Base */
-KC_ESC,   KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL, KC_INS,  
-KC_F1,    KC_TAB,  KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, 
-KC_F2,    KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
-KC_F3,    KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP,
-KC_F4,    KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_DEL, KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT 
-),
+    [0] = LAYOUT( /* Base */
+        KC_ESC,    KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,             KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_DEL, KC_INS,
+        KC_F1,     KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,         KC_DEL,
+        KC_F2,     KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,
+        KC_F3,     KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,             KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,
+        KC_F4,     KC_LCTL, KC_LGUI, KC_LALT,          KC_SPC,           KC_DEL,                    KC_SPC,           KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    )
 };
diff --git a/keyboards/sirius/uni660/rev1/keymaps/via/keymap.c b/keyboards/sirius/uni660/rev1/keymaps/via/keymap.c
index 61bac7e4d5..d0a1bf6e77 100644
--- a/keyboards/sirius/uni660/rev1/keymaps/via/keymap.c
+++ b/keyboards/sirius/uni660/rev1/keymaps/via/keymap.c
@@ -1,35 +1,35 @@
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-[0] = LAYOUT( /* Base */
-KC_ESC,   KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL, KC_INS,  
-KC_F1,    KC_TAB,  KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, 
-KC_F2,    KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
-KC_F3,    KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP,
-KC_F4,    KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_DEL, KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT 
-),
+    [0] = LAYOUT( /* Base */
+        KC_ESC,     KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,             KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_DEL,  KC_INS,
+        KC_F1,      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_DEL,
+        KC_F2,      KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,
+        KC_F3,      KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,             KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,
+        KC_F4,      KC_LCTL, KC_LGUI, KC_LALT,          KC_SPC,           KC_DEL,                    KC_SPC,           KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    ),
 
-[1] = LAYOUT( /* Layer 1 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [1] = LAYOUT( /* Layer 1 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______,          _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    ),
 
-[2] = LAYOUT( /* Layer 2 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [2] = LAYOUT( /* Layer 2 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______,          _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    ),
 
-[3] = LAYOUT( /* Layer 3 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [3] = LAYOUT( /* Layer 3 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______,          _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    )
 };
diff --git a/keyboards/sirius/uni660/matrix.c b/keyboards/sirius/uni660/rev1/matrix.c
similarity index 100%
rename from keyboards/sirius/uni660/matrix.c
rename to keyboards/sirius/uni660/rev1/matrix.c
diff --git a/keyboards/sirius/uni660/readme.md b/keyboards/sirius/uni660/rev1/readme.md
similarity index 77%
rename from keyboards/sirius/uni660/readme.md
rename to keyboards/sirius/uni660/rev1/readme.md
index 4a45c6276f..278841bd6e 100644
--- a/keyboards/sirius/uni660/readme.md
+++ b/keyboards/sirius/uni660/rev1/readme.md
@@ -1,15 +1,13 @@
-# Uni660
+# Uni660 Rev1
 
-The Uni660 is an ergonomic wireless keyboard designed by Sirius. 
+The Uni660 is an ergonomic wireless keyboard designed by Sirius.
 
 Join the KeyCommerce [Discord](https://discord.gg/GJ8bdM)
 
 Make example:
 
 ```
-qmk compile -kb sirius/uni660/rev1 -km default
-qmk compile -kb sirius/uni660/rev2/ansi -km default
-qmk compile -kb sirius/uni660/rev2/iso -km default
+make sirius/uni660/rev1:default
 ```
 
 See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/sirius/uni660/uni660.c b/keyboards/sirius/uni660/rev1/rev1.c
similarity index 59%
rename from keyboards/sirius/uni660/uni660.c
rename to keyboards/sirius/uni660/rev1/rev1.c
index 2144facc56..872004355e 100644
--- a/keyboards/sirius/uni660/uni660.c
+++ b/keyboards/sirius/uni660/rev1/rev1.c
@@ -1,24 +1,24 @@
-#include "uni660.h"
+#include "rev1.h"
 
 void uart_init(void) {
-	SERIAL_UART_INIT();
+    SERIAL_UART_INIT();
 }
 
 void led_init(void) {
-	setPinOutput(D1); // Pin to green, set as output
-	writePinHigh(D1); // Turn it off
-	setPinOutput(F4); // Pins to red and blue, set as output
-	setPinOutput(F5);
-	writePinHigh(F4); // Turn them off
-	writePinHigh(F5);
+    setPinOutput(D1); // Pin to green, set as output
+    writePinHigh(D1); // Turn it off
+    setPinOutput(F4); // Pins to red and blue, set as output
+    setPinOutput(F5);
+    writePinHigh(F4); // Turn them off
+    writePinHigh(F5);
 }
 
 void matrix_init_kb(void) {
-	// put your keyboard start-up code here
-	// runs once when the firmware starts up
-	matrix_init_user();
-	uart_init();
-	led_init();
+    // put your keyboard start-up code here
+    // runs once when the firmware starts up
+    matrix_init_user();
+    uart_init();
+    led_init();
 }
 
 /*
diff --git a/keyboards/sirius/uni660/rev1/rev1.h b/keyboards/sirius/uni660/rev1/rev1.h
index 22397b48b1..aea169c219 100644
--- a/keyboards/sirius/uni660/rev1/rev1.h
+++ b/keyboards/sirius/uni660/rev1/rev1.h
@@ -1,23 +1,62 @@
 #pragma once
 
-#include "uni660.h"
-
 #include "quantum.h"
 
+#define red_led_off writePinHigh(F5)
+#define red_led_on  writePinLow(F5)
+#define blu_led_off writePinHigh(F4)
+#define blu_led_on  writePinLow(F4)
+#define grn_led_off writePinHigh(D1)
+#define grn_led_on  writePinLow(D1)
+
+#define set_led_off     red_led_off; grn_led_off; blu_led_off
+#define set_led_red     red_led_on;  grn_led_off; blu_led_off
+#define set_led_blue    red_led_off; grn_led_off; blu_led_on
+#define set_led_green   red_led_off; grn_led_on;  blu_led_off
+#define set_led_yellow  red_led_on;  grn_led_on;  blu_led_off
+#define set_led_magenta red_led_on;  grn_led_off; blu_led_on
+#define set_led_cyan    red_led_off; grn_led_on;  blu_led_on
+#define set_led_white   red_led_on;  grn_led_on;  blu_led_on
+
+/*
+#define LED_B 5
+#define LED_R 6
+#define LED_G 7
+
+#define all_leds_off PORTF &= ~(1<<LED_B) & ~(1<<LED_R) & ~(1<<LED_G)
+
+#define red_led_on   PORTF |= (1<<LED_R)
+#define red_led_off  PORTF &= ~(1<<LED_R)
+#define grn_led_on   PORTF |= (1<<LED_G)
+#define grn_led_off  PORTF &= ~(1<<LED_G)
+#define blu_led_on   PORTF |= (1<<LED_B)
+#define blu_led_off  PORTF &= ~(1<<LED_B)
+
+#define set_led_off     PORTF &= ~(1<<LED_B) & ~(1<<LED_R) & ~(1<<LED_G)
+#define set_led_red     PORTF = PORTF & ~(1<<LED_B) & ~(1<<LED_G) | (1<<LED_R)
+#define set_led_blue    PORTF = PORTF & ~(1<<LED_G) & ~(1<<LED_R) | (1<<LED_B)
+#define set_led_green   PORTF = PORTF & ~(1<<LED_B) & ~(1<<LED_R) | (1<<LED_G)
+#define set_led_yellow  PORTF = PORTF & ~(1<<LED_B) | (1<<LED_R) | (1<<LED_G)
+#define set_led_magenta PORTF = PORTF & ~(1<<LED_G) | (1<<LED_R) | (1<<LED_B)
+#define set_led_cyan    PORTF = PORTF & ~(1<<LED_R) | (1<<LED_B) | (1<<LED_G)
+#define set_led_white   PORTF |= (1<<LED_B) | (1<<LED_R) | (1<<LED_G)
+*/
+
+#define XXX KC_NO
+
 // This a shortcut to help you visually see your layout.
 // The first section contains all of the arguments
 // The second converts the arguments into a two-dimensional array
 #define LAYOUT( \
-  k00,    k01, k02, k03, k04, k05, k06, k46,         k08, k09, k0a, k0b, k0c, k0d, k0e, k0f,    k3f,\
-  k10,    k11,  k12, k13, k14, k15, k16,           k18, k19, k1a, k1b, k1c, k1d, k1e,   k1f,    k2f,\
-  k20,    k21,   k22, k23, k24, k25, k26,           k28, k29, k2a, k2b, k2c, k2d,       k2e,\
-  k30,    k31,    k32, k33, k34, k35, k36,            k38, k39, k3a, k3b, k3c,       k3d,  k3e, \
-  k40,    k41,   k42,  k43,    k44,  k45,            k48,       k49,   k4a,  k4c,     k4d, k4e, k4f   \
-) \
-  {                                                           \
-    { k00, k01, k02, k03, k04, k05, k06,  KC_NO, k08, k09, k0a, k0b, k0c, k0d, k0e, k0f   }, \
-    { k10, k11, k12, k13, k14, k15, k16,  KC_NO, k18, k19, k1a, k1b, k1c, k1d, k1e, k1f   }, \
-    { k20, k21, k22, k23, k24, k25, k26,  KC_NO, k28, k29, k2a, k2b, k2c, k2d, k2e, k2f   }, \
-    { k30, k31, k32, k33, k34, k35, k36,  KC_NO, k38, k39, k3a, k3b, k3c, k3d, k3e, k3f   }, \
-    { k40, k41, k42, k43, k44, k45, k46,  KC_NO, k48, k49, k4a, KC_NO, k4c, k4d, k4e, k4f    }  \
-  }
+    k00,    k01, k02, k03, k04, k05, k06, k46, k08, k09, k0A, k0B, k0C, k0D, k0E, k0F, k3F,\
+    k10,    k11, k12, k13, k14, k15, k16, k18, k19, k1A, k1B, k1C, k1D, k1E, k1F, k2F,\
+    k20,    k21, k22, k23, k24, k25, k26, k28, k29, k2A, k2B, k2C, k2D, k2E,\
+    k30,    k31, k32, k33, k34, k35, k36, k38, k39, k3A, k3B, k3C, k3D, k3E, \
+    k40,    k41, k42, k43, k44, k45, k48, k49, k4A, k4C, k4D, k4E, k4F \
+) { \
+    { k00, k01, k02, k03, k04, k05, k06, XXX, k08, k09, k0A, k0B, k0C, k0D, k0E, k0F }, \
+    { k10, k11, k12, k13, k14, k15, k16, XXX, k18, k19, k1A, k1B, k1C, k1D, k1E, k1F }, \
+    { k20, k21, k22, k23, k24, k25, k26, XXX, k28, k29, k2A, k2B, k2C, k2D, k2E, k2F }, \
+    { k30, k31, k32, k33, k34, k35, k36, XXX, k38, k39, k3A, k3B, k3C, k3D, k3E, k3F }, \
+    { k40, k41, k42, k43, k44, k45, k46, XXX, k48, k49, k4A, XXX, k4C, k4D, k4E, k4F } \
+}
diff --git a/keyboards/sirius/uni660/rev1/rules.mk b/keyboards/sirius/uni660/rev1/rules.mk
index e69de29bb2..e40e00c583 100644
--- a/keyboards/sirius/uni660/rev1/rules.mk
+++ b/keyboards/sirius/uni660/rev1/rules.mk
@@ -0,0 +1,27 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no        # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
+UNICODE_ENABLE = yes        # Unicode
+CUSTOM_MATRIX = yes
+
+# project specific files
+SRC += matrix.c
diff --git a/keyboards/sirius/uni660/.noci b/keyboards/sirius/uni660/rev2/.noci
similarity index 100%
rename from keyboards/sirius/uni660/.noci
rename to keyboards/sirius/uni660/rev2/.noci
diff --git a/keyboards/sirius/uni660/rev2/ansi/.noci b/keyboards/sirius/uni660/rev2/ansi/.noci
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/keyboards/sirius/uni660/rev2/ansi/ansi.h b/keyboards/sirius/uni660/rev2/ansi/ansi.h
index 3e21b5c843..526b3cc724 100644
--- a/keyboards/sirius/uni660/rev2/ansi/ansi.h
+++ b/keyboards/sirius/uni660/rev2/ansi/ansi.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "uni660.h"
+#include "rev2.h"
 
 #include "quantum.h"
 
@@ -8,17 +8,18 @@
 // The first section contains all of the arguments
 // The second converts the arguments into a two-dimensional array
 
+#define XXX KC_NO
+
 #define LAYOUT_ansi( \
-  k00,    k01, k02, k03, k04, k05, k06, k46,         k08, k09, k0a, k0b, k0c, k0d, k0e, k0f,    k3f,\
-  k10,    k11,  k12, k13, k14, k15, k16,           k18, k19, k1a, k1b, k1c, k1d, k1e,   k1f,    k2f,\
-  k20,    k21,   k22, k23, k24, k25, k26,           k28, k29, k2a, k2b, k2c, k2d,       k2e,\
-  k30,    k31,   k32, k33, k34, k35, k36,            k38, k39, k3a, k3b, k3c,       k3d,  k3e, \
-  k40,    k41,   k42,  k43,    k44,  k45,            k48,       k49,   k4a,  k4c,     k4d, k4e, k4f   \
-) \
-  {                                                           \
-    { k00, k01, k02, k03, k04, k05, k06,  KC_NO, k08, k09, k0a, k0b, k0c, k0d, k0e, k0f   }, \
-    { k10, k11, k12, k13, k14, k15, k16,  KC_NO, k18, k19, k1a, k1b, k1c, k1d, k1e, k1f   }, \
-    { k20, k21, k22, k23, k24, k25, k26,  KC_NO, k28, k29, k2a, k2b, k2c, k2d, k2e, k2f   }, \
-    { k30, k31, k32, k33, k34, k35, k36,  KC_NO, k38, k39, k3a, k3b, k3c, k3d, k3e, k3f   }, \
-    { k40, k41, k42, k43, k44, k45, k46,  KC_NO, k48, k49, k4a, KC_NO, k4c, k4d, k4e, k4f    }  \
-  }
+    k00,  k01, k02, k03, k04, k05, k06, k46,      k08, k09, k0A, k0B, k0C, k0D, k0E, k0F,  k3F,\
+    k10,  k11, k12, k13, k14, k15, k16,      k18, k19, k1A, k1B, k1C, k1D, k1E, k1F,       k2F,\
+    k20,  k21, k22, k23, k24, k25, k26,      k28, k29, k2A, k2B, k2C, k2D,      k2E, \
+    k30,  k31,      k32, k33, k34, k35, k36,      k38, k39, k3A, k3B, k3C,      k3D, k3E, \
+    k40,  k41, k42, k43,      k44,      k45,           k48,      k49, k4A, k4C, k4D, k4E, k4F \
+) { \
+    { k00, k01, k02, k03, k04, k05, k06, XXX, k08, k09, k0A, k0B, k0C, k0D, k0E, k0F }, \
+    { k10, k11, k12, k13, k14, k15, k16, XXX, k18, k19, k1A, k1B, k1C, k1D, k1E, k1F }, \
+    { k20, k21, k22, k23, k24, k25, k26, XXX, k28, k29, k2A, k2B, k2C, k2D, k2E, k2F }, \
+    { k30, k31, k32, k33, k34, k35, k36, XXX, k38, k39, k3A, k3B, k3C, k3D, k3E, k3F }, \
+    { k40, k41, k42, k43, k44, k45, k46, XXX, k48, k49, k4A, XXX, k4C, k4D, k4E, k4F } \
+}
diff --git a/keyboards/sirius/uni660/rev2/ansi/config.h b/keyboards/sirius/uni660/rev2/ansi/config.h
index 0032f61ccd..7bca743633 100644
--- a/keyboards/sirius/uni660/rev2/ansi/config.h
+++ b/keyboards/sirius/uni660/rev2/ansi/config.h
@@ -20,26 +20,23 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "config_common.h"
 
 /* USB Device descriptor parameter */
-
-#define VENDOR_ID       0x5352			// "SR"
-#define PRODUCT_ID      0x0202			// Second Product Second Version
-#define DEVICE_VER      0x2004			// 2020.12
-#define MANUFACTURER    SiRius
-#define PRODUCT         SiRius Uni660 V2
-#define DESCRIPTION     SiRius Uni660 V2
+#define VENDOR_ID    0x5352 // "SR"
+#define PRODUCT_ID   0x0202 // Second Product Second Version
+#define DEVICE_VER   0x2004 // 2020.12
+#define MANUFACTURER SiRius
+#define PRODUCT      Uni660 V2
 
 /* key matrix size */
 #define MATRIX_ROWS 5
 #define MATRIX_COLS 16
 
-/* define if matrix has ghost */
-//#define MATRIX_HAS_GHOST
-
-/* number of backlight levels */
-//#define BACKLIGHT_LEVELS 3
-
 #define ONESHOT_TIMEOUT 500
 
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+//#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+//#define LOCKING_RESYNC_ENABLE
+
 /*
  * Feature disable options
  *  These options are also useful to firmware size reduction.
@@ -55,8 +52,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define NO_ACTION_LAYER
 //#define NO_ACTION_TAPPING
 //#define NO_ACTION_ONESHOT
-//#define NO_ACTION_MACRO
-//#define NO_ACTION_FUNCTION
+
+/* disable these deprecated features by default */
+#define NO_ACTION_MACRO
+#define NO_ACTION_FUNCTION
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 1000000
@@ -65,14 +64,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
 #define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+    /* baud rate */ \
+    UBRR1L = SERIAL_UART_UBRR; \
+    /* baud rate */ \
+    UBRR1H = SERIAL_UART_UBRR >> 8; \
+    /* enable TX and RX */ \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /* 8-bit data */ \
+    UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
+} while (0)
 
 #define DYNAMIC_KEYMAP_LAYER_COUNT 4
diff --git a/keyboards/sirius/uni660/rev2/ansi/keymaps/default/keymap.c b/keyboards/sirius/uni660/rev2/ansi/keymaps/default/keymap.c
index ff45e7f2b7..6a07da496e 100644
--- a/keyboards/sirius/uni660/rev2/ansi/keymaps/default/keymap.c
+++ b/keyboards/sirius/uni660/rev2/ansi/keymaps/default/keymap.c
@@ -1,11 +1,11 @@
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-[0] = LAYOUT_ansi( /* Base */
-KC_ESC,   KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL, KC_INS,  
-KC_F1,    KC_TAB,  KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, 
-KC_F2,    KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
-KC_F3,    KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP,
-KC_F4,    KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_DEL, KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT 
-),
+    [0] = LAYOUT_ansi( /* Base */
+        KC_ESC,     KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,             KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_DEL,  KC_INS,
+        KC_F1,      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_DEL,
+        KC_F2,      KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,
+        KC_F3,      KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,             KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,
+        KC_F4,      KC_LCTL, KC_LGUI, KC_LALT,          KC_SPC,           KC_DEL,                    KC_SPC,           KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    )
 };
diff --git a/keyboards/sirius/uni660/rev2/ansi/keymaps/via/keymap.c b/keyboards/sirius/uni660/rev2/ansi/keymaps/via/keymap.c
index 26ec43d478..66421f2857 100644
--- a/keyboards/sirius/uni660/rev2/ansi/keymaps/via/keymap.c
+++ b/keyboards/sirius/uni660/rev2/ansi/keymaps/via/keymap.c
@@ -1,35 +1,35 @@
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-[0] = LAYOUT_ansi( /* Base */
-KC_ESC,   KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL, KC_INS,  
-KC_F1,    KC_TAB,  KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, 
-KC_F2,    KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
-KC_F3,    KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP,
-KC_F4,    KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_DEL, KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT 
-),
+    [0] = LAYOUT_ansi( /* Base */
+        KC_ESC,     KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,             KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_DEL,  KC_INS,
+        KC_F1,      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_DEL,
+        KC_F2,      KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,
+        KC_F3,      KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,             KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,
+        KC_F4,      KC_LCTL, KC_LGUI, KC_LALT,          KC_SPC,           KC_DEL,                    KC_SPC,           KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    ),
 
-[1] = LAYOUT_ansi( /* Layer 1 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [1] = LAYOUT_ansi( /* Layer 1 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______,          _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    ),
 
-[2] = LAYOUT_ansi( /* Layer 2 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [2] = LAYOUT_ansi( /* Layer 2 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______,          _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    ),
 
-[3] = LAYOUT_ansi( /* Layer 3 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [3] = LAYOUT_ansi( /* Layer 3 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______,          _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    )
 };
diff --git a/keyboards/sirius/uni660/rev2/ansi/readme.md b/keyboards/sirius/uni660/rev2/ansi/readme.md
new file mode 100644
index 0000000000..76bb943910
--- /dev/null
+++ b/keyboards/sirius/uni660/rev2/ansi/readme.md
@@ -0,0 +1,15 @@
+# Uni660 Rev2 ANSI
+
+The Uni660 is an ergonomic wireless keyboard designed by Sirius.
+
+Join the KeyCommerce [Discord](https://discord.gg/GJ8bdM)
+
+Make example:
+
+```
+make sirius/uni660/rev2/ansi:default
+```
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+To get the U2U into DFU flashing mode, insert the U2U into the computer and connect the ![RST pins](https://i.imgur.com/IlKKXWB.png)
diff --git a/keyboards/sirius/uni660/rev2/iso/.noci b/keyboards/sirius/uni660/rev2/iso/.noci
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/keyboards/sirius/uni660/rev2/iso/config.h b/keyboards/sirius/uni660/rev2/iso/config.h
index e31f8fb8eb..0cbbe0c5ba 100644
--- a/keyboards/sirius/uni660/rev2/iso/config.h
+++ b/keyboards/sirius/uni660/rev2/iso/config.h
@@ -20,26 +20,23 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "config_common.h"
 
 /* USB Device descriptor parameter */
-
-#define VENDOR_ID       0x5352			// "SR"
-#define PRODUCT_ID      0x0203			// Second Product Third Version
-#define DEVICE_VER      0x2004			// 2020.12
-#define MANUFACTURER    SiRius
-#define PRODUCT         SiRius Uni660 V2
-#define DESCRIPTION     SiRius Uni660 V2
+#define VENDOR_ID    0x5352 // "SR"
+#define PRODUCT_ID   0x0203 // Second Product Third Version
+#define DEVICE_VER   0x2004 // 2020.12
+#define MANUFACTURER SiRius
+#define PRODUCT      Uni660 V2
 
 /* key matrix size */
 #define MATRIX_ROWS 5
 #define MATRIX_COLS 16
 
-/* define if matrix has ghost */
-//#define MATRIX_HAS_GHOST
-
-/* number of backlight levels */
-//#define BACKLIGHT_LEVELS 3
-
 #define ONESHOT_TIMEOUT 500
 
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+//#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+//#define LOCKING_RESYNC_ENABLE
+
 /*
  * Feature disable options
  *  These options are also useful to firmware size reduction.
@@ -55,8 +52,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define NO_ACTION_LAYER
 //#define NO_ACTION_TAPPING
 //#define NO_ACTION_ONESHOT
-//#define NO_ACTION_MACRO
-//#define NO_ACTION_FUNCTION
+
+/* disable these deprecated features by default */
+#define NO_ACTION_MACRO
+#define NO_ACTION_FUNCTION
 
 //UART settings for communication with the RF microcontroller
 #define SERIAL_UART_BAUD 1000000
@@ -65,14 +64,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
 #define SERIAL_UART_RXD_PRESENT (UCSR1A & _BV(RXC1))
 #define SERIAL_UART_INIT() do { \
-    	/* baud rate */ \
-    	UBRR1L = SERIAL_UART_UBRR; \
-    	/* baud rate */ \
-    	UBRR1H = SERIAL_UART_UBRR >> 8; \
-    	/* enable TX and RX */ \
-    	UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
-    	/* 8-bit data */ \
-    	UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
-  	} while(0)
+    /* baud rate */ \
+    UBRR1L = SERIAL_UART_UBRR; \
+    /* baud rate */ \
+    UBRR1H = SERIAL_UART_UBRR >> 8; \
+    /* enable TX and RX */ \
+    UCSR1B = _BV(TXEN1) | _BV(RXEN1); \
+    /* 8-bit data */ \
+    UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
+} while (0)
 
 #define DYNAMIC_KEYMAP_LAYER_COUNT 4
diff --git a/keyboards/sirius/uni660/rev2/iso/iso.h b/keyboards/sirius/uni660/rev2/iso/iso.h
index b38bdfc932..df5516e782 100644
--- a/keyboards/sirius/uni660/rev2/iso/iso.h
+++ b/keyboards/sirius/uni660/rev2/iso/iso.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "uni660.h"
+#include "rev2.h"
 
 #include "quantum.h"
 
@@ -8,17 +8,18 @@
 // The first section contains all of the arguments
 // The second converts the arguments into a two-dimensional array
 
+#define XXX KC_NO
+
 #define LAYOUT_iso( \
-  k00,    k01, k02, k03, k04, k05, k06, k46,         k08, k09, k0a, k0b, k0c, k0d, k0e, k0f,    k3f,\
-  k10,    k11,  k12, k13, k14, k15, k16,           k18, k19, k1a, k1b, k1c, k1d, k1e,   k1f,    k2f,\
-  k20,    k21,   k22, k23, k24, k25, k26,           k28, k29, k2a, k2b, k2c, k2d,       k2e,\
-  k30,    k31,   k37, k32, k33, k34, k35, k36,            k38, k39, k3a, k3b, k3c,       k3d,  k3e, \
-  k40,    k41,   k42,  k43,    k44,  k45,            k48,       k49,   k4a,  k4c,     k4d, k4e, k4f   \
-) \
-  {                                                           \
-    { k00, k01, k02, k03, k04, k05, k06,  KC_NO, k08, k09, k0a, k0b, k0c, k0d, k0e, k0f   }, \
-    { k10, k11, k12, k13, k14, k15, k16,  KC_NO, k18, k19, k1a, k1b, k1c, k1d, k1e, k1f   }, \
-    { k20, k21, k22, k23, k24, k25, k26,  KC_NO, k28, k29, k2a, k2b, k2c, k2d, k2e, k2f   }, \
-    { k30, k31, k32, k33, k34, k35, k36,  k37, k38, k39, k3a, k3b, k3c, k3d, k3e, k3f   }, \
-    { k40, k41, k42, k43, k44, k45, k46,  KC_NO, k48, k49, k4a, KC_NO, k4c, k4d, k4e, k4f    }  \
-  }
+    k00,  k01, k02, k03, k04, k05, k06, k46,      k08, k09, k0A, k0B, k0C, k0D, k0E, k0F,  k3F,\
+    k10,  k11, k12, k13, k14, k15, k16,      k18, k19, k1A, k1B, k1C, k1D, k1E, k1F,       k2F,\
+    k20,  k21, k22, k23, k24, k25, k26,      k28, k29, k2A, k2B, k2C, k2D, k2E, \
+    k30,  k31, k37, k32, k33, k34, k35, k36,      k38, k39, k3A, k3B, k3C,      k3D, k3E, \
+    k40,  k41, k42, k43,      k44,      k45,           k48,      k49, k4A, k4C, k4D, k4E, k4F \
+) { \
+    { k00, k01, k02, k03, k04, k05, k06, XXX, k08, k09, k0A, k0B, k0C, k0D, k0E, k0F }, \
+    { k10, k11, k12, k13, k14, k15, k16, XXX, k18, k19, k1A, k1B, k1C, k1D, k1E, k1F }, \
+    { k20, k21, k22, k23, k24, k25, k26, XXX, k28, k29, k2A, k2B, k2C, k2D, k2E, k2F }, \
+    { k30, k31, k32, k33, k34, k35, k36, k37, k38, k39, k3A, k3B, k3C, k3D, k3E, k3F }, \
+    { k40, k41, k42, k43, k44, k45, k46, XXX, k48, k49, k4A, XXX, k4C, k4D, k4E, k4F } \
+}
diff --git a/keyboards/sirius/uni660/rev2/iso/keymaps/default/keymap.c b/keyboards/sirius/uni660/rev2/iso/keymaps/default/keymap.c
index de8630eaa6..25e4714161 100644
--- a/keyboards/sirius/uni660/rev2/iso/keymaps/default/keymap.c
+++ b/keyboards/sirius/uni660/rev2/iso/keymaps/default/keymap.c
@@ -1,11 +1,11 @@
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-[0] = LAYOUT_iso( /* Base */
-KC_ESC,   KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL, KC_INS,  
-KC_F1,    KC_TAB,  KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, 
-KC_F2,    KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
-KC_F3,    KC_LSFT, KC_NUBS, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP,
-KC_F4,    KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_DEL, KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT 
-),
+    [0] = LAYOUT_iso( /* Base */
+        KC_ESC,     KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,             KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_DEL,  KC_INS,
+        KC_F1,      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_DEL,
+        KC_F2,      KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,
+        KC_F3,      KC_LSFT, KC_NUBS, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,             KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,
+        KC_F4,      KC_LCTL, KC_LGUI, KC_LALT,          KC_SPC,           KC_DEL,                    KC_SPC,           KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    )
 };
diff --git a/keyboards/sirius/uni660/rev2/iso/keymaps/via/keymap.c b/keyboards/sirius/uni660/rev2/iso/keymaps/via/keymap.c
index ac1d7c6d59..3965435448 100644
--- a/keyboards/sirius/uni660/rev2/iso/keymaps/via/keymap.c
+++ b/keyboards/sirius/uni660/rev2/iso/keymaps/via/keymap.c
@@ -1,35 +1,35 @@
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-[0] = LAYOUT_iso( /* Base */
-KC_ESC,   KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, KC_DEL, KC_INS,  
-KC_F1,    KC_TAB,  KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL, 
-KC_F2,    KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
-KC_F3,    KC_LSFT, KC_NUBS, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP,
-KC_F4,    KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_DEL, KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT 
-),
+    [0] = LAYOUT_iso( /* Base */
+        KC_ESC,     KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,             KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_DEL,  KC_INS,
+        KC_F1,      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_DEL,
+        KC_F2,      KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,
+        KC_F3,      KC_LSFT, KC_NUBS, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,             KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,
+        KC_F4,      KC_LCTL, KC_LGUI, KC_LALT,          KC_SPC,           KC_DEL,                    KC_SPC,           KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    ),
 
-[1] = LAYOUT_iso( /* Layer 1 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [1] = LAYOUT_iso( /* Layer 1 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    ),
 
-[2] = LAYOUT_iso( /* Layer 2 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [2] = LAYOUT_iso( /* Layer 2 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    ),
 
-[3] = LAYOUT_iso( /* Layer 3 */
-KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,  
-KC_TRNS,    KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
-KC_TRNS,    KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_RGUI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS 
-),
+    [3] = LAYOUT_iso( /* Layer 3 */
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______,          _______,
+        _______,    _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,          _______, _______,
+        _______,    _______, _______, _______,          _______,          _______,                   _______,          _______, _______, _______, _______, _______, _______
+    )
 };
diff --git a/keyboards/sirius/uni660/rev2/iso/readme.md b/keyboards/sirius/uni660/rev2/iso/readme.md
new file mode 100644
index 0000000000..ea80141e9c
--- /dev/null
+++ b/keyboards/sirius/uni660/rev2/iso/readme.md
@@ -0,0 +1,15 @@
+# Uni660 Rev2 ISO
+
+The Uni660 is an ergonomic wireless keyboard designed by Sirius.
+
+Join the KeyCommerce [Discord](https://discord.gg/GJ8bdM)
+
+Make example:
+
+```
+make sirius/uni660/rev2/iso:default
+```
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+To get the U2U into DFU flashing mode, insert the U2U into the computer and connect the ![RST pins](https://i.imgur.com/IlKKXWB.png)
diff --git a/keyboards/sirius/uni660/rev2/matrix.c b/keyboards/sirius/uni660/rev2/matrix.c
new file mode 100644
index 0000000000..3e231b33bc
--- /dev/null
+++ b/keyboards/sirius/uni660/rev2/matrix.c
@@ -0,0 +1,160 @@
+/*
+Copyright 2012 Jun Wako
+Copyright 2014 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <stdint.h>
+#include <stdbool.h>
+#if defined(__AVR__)
+#include <avr/io.h>
+#endif
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "timer.h"
+#include "debounce.h"
+
+#if (MATRIX_COLS <= 8)
+#    define print_matrix_header()  print("\nr/c 01234567\n")
+#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop(matrix[i])
+#    define ROW_SHIFTER ((uint8_t)1)
+#elif (MATRIX_COLS <= 16)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop16(matrix[i])
+#    define ROW_SHIFTER ((uint16_t)1)
+#elif (MATRIX_COLS <= 32)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop32(matrix[i])
+#    define ROW_SHIFTER  ((uint32_t)1)
+#endif
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void) {
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void) {
+    return MATRIX_COLS;
+}
+
+void matrix_init(void) {
+    debounce_init(MATRIX_ROWS);
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void)
+{
+    bool matrix_has_changed = false;
+
+    SERIAL_UART_INIT();
+
+    uint32_t timeout = 0;
+
+    //the s character requests the RF slave to send the matrix
+    SERIAL_UART_DATA = 's';
+
+    //trust the external keystates entirely, erase the last data
+    uint8_t uart_data[17] = {0};
+
+    //there are 16 bytes corresponding to 16 columns, and an end byte
+    for (uint8_t i = 0; i < 17; i++) {
+        //wait for the serial data, timeout if it's been too long
+        //this only happened in testing with a loose wire, but does no
+        //harm to leave it in here
+        while(!SERIAL_UART_RXD_PRESENT){
+            timeout++;
+            if (timeout > 10000){
+                break;
+            }
+        }
+        uart_data[i] = SERIAL_UART_DATA;
+    }
+
+    //check for the end packet, the key state bytes use the LSBs, so 0xE0
+    //will only show up here if the correct bytes were recieved
+    if (uart_data[10] == 0xE0)
+    {
+        //shifting and transferring the keystates to the QMK matrix variable
+        for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 8;
+        }
+    }
+
+    debounce(matrix, matrix, MATRIX_ROWS, matrix_has_changed);
+
+    matrix_scan_quantum();
+
+    return matrix_has_changed;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+    print_matrix_header();
+
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        print_matrix_row(row);
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += matrix_bitpop(i);
+    }
+    return count;
+}
diff --git a/keyboards/sirius/uni660/rev2/readme.md b/keyboards/sirius/uni660/rev2/readme.md
new file mode 100644
index 0000000000..059782b313
--- /dev/null
+++ b/keyboards/sirius/uni660/rev2/readme.md
@@ -0,0 +1,16 @@
+# Uni660 Rev2
+
+The Uni660 is an ergonomic wireless keyboard designed by Sirius.
+
+Join the KeyCommerce [Discord](https://discord.gg/GJ8bdM)
+
+Make example:
+
+```
+make sirius/uni660/rev2/ansi:default
+make sirius/uni660/rev2/iso:default
+```
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+To get the U2U into DFU flashing mode, insert the U2U into the computer and connect the ![RST pins](https://i.imgur.com/IlKKXWB.png)
diff --git a/keyboards/sirius/uni660/rev2/rev2.c b/keyboards/sirius/uni660/rev2/rev2.c
new file mode 100644
index 0000000000..e19240ccc3
--- /dev/null
+++ b/keyboards/sirius/uni660/rev2/rev2.c
@@ -0,0 +1,35 @@
+#include "rev2.h"
+
+void uart_init(void) {
+    SERIAL_UART_INIT();
+}
+
+void led_init(void) {
+    setPinOutput(D1); // Pin to green, set as output
+    writePinHigh(D1); // Turn it off
+    setPinOutput(F4); // Pins to red and blue, set as output
+    setPinOutput(F5);
+    writePinHigh(F4); // Turn them off
+    writePinHigh(F5);
+}
+
+void matrix_init_kb(void) {
+    // put your keyboard start-up code here
+    // runs once when the firmware starts up
+    matrix_init_user();
+    uart_init();
+    led_init();
+}
+
+/*
+#ifdef SWAP_HANDS_ENABLE
+__attribute__ ((weak))
+const keypos_t hand_swap_config[MATRIX_ROWS][MATRIX_COLS] = {
+{{9, 0}, {8, 0}, {7, 0}, {6, 0}, {5, 0}, {4, 0}, {3, 0}, {2, 0}, {1, 0}, {0, 0}},
+{{9, 1}, {8, 1}, {7, 1}, {6, 1}, {5, 1}, {4, 1}, {3, 1}, {2, 1}, {1, 1}, {0, 1}},
+{{9, 2}, {8, 2}, {7, 2}, {6, 2}, {5, 2}, {4, 2}, {3, 2}, {2, 2}, {1, 2}, {0, 2}},
+{{9, 3}, {8, 3}, {7, 3}, {6, 3}, {5, 3}, {4, 3}, {3, 3}, {2, 3}, {1, 3}, {0, 3}},
+{{9, 4}, {8, 4}, {7, 4}, {6, 4}, {5, 4}, {4, 4}, {3, 4}, {2, 4}, {1, 4}, {0, 4}},
+};
+#endif
+*/
diff --git a/keyboards/sirius/uni660/uni660.h b/keyboards/sirius/uni660/rev2/rev2.h
similarity index 81%
rename from keyboards/sirius/uni660/uni660.h
rename to keyboards/sirius/uni660/rev2/rev2.h
index 75813db7bd..cdd9c4e61b 100644
--- a/keyboards/sirius/uni660/uni660.h
+++ b/keyboards/sirius/uni660/rev2/rev2.h
@@ -2,20 +2,18 @@
 
 #include "quantum.h"
 
-#ifdef KEYBOARD_sirius_uni660_rev1
-    #include "rev1.h"
-#elif KEYBOARD_sirius_uni660_rev2_iso
-    #include "iso.h"
+#if KEYBOARD_sirius_uni660_rev2_iso
+#    include "iso.h"
 #elif KEYBOARD_sirius_uni660_rev2_ansi
-	#include "ansi.h"
+#    include "ansi.h"
 #endif
 
-#define red_led_off   writePinHigh(F5)
-#define red_led_on    writePinLow(F5)
-#define blu_led_off   writePinHigh(F4)
-#define blu_led_on    writePinLow(F4)
-#define grn_led_off   writePinHigh(D1)
-#define grn_led_on    writePinLow(D1)
+#define red_led_off writePinHigh(F5)
+#define red_led_on  writePinLow(F5)
+#define blu_led_off writePinHigh(F4)
+#define blu_led_on  writePinLow(F4)
+#define grn_led_off writePinHigh(D1)
+#define grn_led_on  writePinLow(D1)
 
 #define set_led_off     red_led_off; grn_led_off; blu_led_off
 #define set_led_red     red_led_on;  grn_led_off; blu_led_off
diff --git a/keyboards/sirius/uni660/rev2/rules.mk b/keyboards/sirius/uni660/rev2/rules.mk
new file mode 100644
index 0000000000..b6ac2d1c00
--- /dev/null
+++ b/keyboards/sirius/uni660/rev2/rules.mk
@@ -0,0 +1,29 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = no        # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+AUDIO_ENABLE = no           # Audio output
+UNICODE_ENABLE = yes        # Unicode
+CUSTOM_MATRIX = yes
+
+# project specific files
+SRC += matrix.c
+
+DEFAULT_FOLDER = sirius/uni660/rev2/ansi
diff --git a/keyboards/sirius/uni660/rules.mk b/keyboards/sirius/uni660/rules.mk
deleted file mode 100644
index 243916fa76..0000000000
--- a/keyboards/sirius/uni660/rules.mk
+++ /dev/null
@@ -1,33 +0,0 @@
-# MCU name
-MCU = atmega32u4
-
-# Bootloader selection
-#   Teensy       halfkay
-#   Pro Micro    caterina
-#   Atmel DFU    atmel-dfu
-#   LUFA DFU     lufa-dfu
-#   QMK DFU      qmk-dfu
-#   ATmega32A    bootloadHID
-#   ATmega328P   USBasp
-BOOTLOADER = caterina
-
-# Build Options
-#   comment out to disable the options.
-#
-BOOTMAGIC_ENABLE = lite	# Virtual DIP switch configuration
-MOUSEKEY_ENABLE = no	# Mouse keys
-EXTRAKEY_ENABLE = yes	# Audio control and System control
-CONSOLE_ENABLE = yes	# Console for debug
-COMMAND_ENABLE = yes   # Commands for debug and configuration
-CUSTOM_MATRIX = yes    # Remote matrix from the wireless bridge
-# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
-# SLEEP_LED_ENABLE = yes  # Breathing sleep LED during USB suspend
-NKRO_ENABLE = yes		# USB Nkey Rollover - not yet supported in LUFA
-# BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
-# MIDI_ENABLE = yes 		# MIDI controls
-UNICODE_ENABLE = yes 		# Unicode
-# BLUETOOTH_ENABLE = yes # Enable Bluetooth with the Adafruit EZ-Key HID
-
-# project specific files
-SRC += matrix.c
-