I came across this. It seems there are some hardware issues that cannot be bypassed by firmware, and another revision of the board will be released next year. Maybe nothing that will impact the ESP32 port, but maybe worth bearing in mind if trying to get hold of an ESP32 now.
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.
I came across this. It seems there are some hardware issues that cannot be bypassed by firmware, and another revision of the board will be released next year. Maybe nothing that will impact the ESP32 port, but maybe worth bearing in mind if trying to get hold of an ESP32 now.
http://espressif.com/sites/default/files/documentation/eco_and_workarounds_for_bugs_in_esp32_en.pdf