How to flash espduino firmware on Cactus Micro ESP8266 rev1

Modify Cactus Micro: 1) convert default serial port to hardware serial (cut/solder) 2) connect Digital pin 5 to ESP8266’s GPIO0 (so arduino sketch at the bottom of this page can pull ESP8266’s GPIO0 to GND – this puts the ESP8266 in program mode to receive firmware update) Load Arduino programmer sketch – sends computer […]