@dmitry-korzhenevskiy this is a normal behavior, you are mixing software serial and hardware one on same pins, it can't works properly
Serial.swap() swap pin of hardware Serial (GPIO13 instead of GPIO3)
The deal with ESP8266, if you use hardware serial, no way to serial debug, this is exactly why I don't like this kind of custom configuration, you're blind in case of issues except trying software serial to debug using something like that
// instantiate SoftSerial but not using pin now // Debug Soft Serial, no RX TX for now SoftwareSerial SerialDebug(-1, -1); void setup(void) { // Hardware Serial (GPIO1/GPIO3) Serial.begin(1200); // Now Free up Pins used by Hardware Serial to GPIO15/GPIO13 Serial.swap(); // Now we can setup soft Serial with GPIO1 for TX SerialDebug.setTransmitEnablePin(1); SerialDebug.begin(9600); SerialDebug.println(F("Soft Serial started")); tinfo.init(); tinfo.attachData(print_values); SerialDebug.println(F("Teleinfo started")); }
