We have tested to make Cactus Micro as ESP8266 programmer. It works very well. To do the work, you need make some jump wires.
Steps for hacking
- For upload firmware to ESP8266, we need more stable connection for UART. So change the serial port to hardware serial port first.
- Add a jump wire ESP8266 GPIO0 -> Cactus Micro D5 , See the picture below. The pin D5 will pull down GPIO0 for upload firmware.
- Upload the sketch to Cactus Micro
Done! We tested”esptool” under OS X. It works like a charm.