Maybe... are you sure it's not the baud rate? Did you try the test function with different baud rates on the ESP8266 page?
test
@Gordon 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.
Maybe... are you sure it's not the baud rate? Did you try the
test
function with different baud rates on the ESP8266 page?