The code you used to get the fw version is an At call
serial.write("AT+GMR\r\n");
What are you using for 3.3v power supply?
@countxerox started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
The code you used to get the fw version is an At call
What are you using for 3.3v power supply?