• As @fanoush says really... Also you could try without 'default_console_baudrate' : "38400", and just use 9600 as a start because that's what Espruino usually defaults to (including the IDE).

    ... so it could be that it's all working and the IDE's baud rate is wrong?

    Once connected by Bluetooth you could do Serial1.println("Hello") and Serial1.on("data",print) to check out if RX/TX is working separately


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