int inData; const char* valueSensor; const byte devID = 0x01; void setup() { Serial.begin(14400); } void loop() { if ( Serial.available() > 0) { inData = Serial.read(); switch (inData) { case devID: Serial.write("0x01"); Serial.write(" "); Serial.write("hum"); Serial.write(" "); Serial.write("78"); Serial.write(" "); Serial.write("P"); Serial.write(" "); Serial.write("99"); Serial.write(" "); Serial.write("pre"); Serial.write(" "); Serial.write("100"); Serial.write(" "); Serial.write("Hpa"); Serial.write(" "); Serial.write("98"); Serial.write(" "); break; } } }