
Available from:
Aliexpress.com
Manufacturer:
Alibaba.com
GPIO # | Component |
---|---|
GPIO00 | User |
GPIO01 | User |
GPIO02 | User |
GPIO03 | None |
GPIO04 | None |
GPIO05 | User |
GPIO06 | None |
GPIO07 | User |
GPIO08 | User |
GPIO09 | User |
GPIO010 | User |
GPIO011 | User |
GPIO012 | User |
GPIO013 | None |
GPIO014 | None |
GPIO015 | None |
GPIO016 | None |
GPIO017 | None |
GPIO018 | None |
GPIO019 | User |
GPIO020 | User |
GPIO021 | User |
GPIO33 | User |
GPIO34 | User |
GPIO35 | None |
GPIO36 | None |
GPIO37 | User |
GPIO38 | None |
GPIO39 | None |
GPIO40 | None |
GPIO41 | None |
GPIO42 | None |
GPIO43 | User |
GPIO44 | User |
GPIO45 | None |
GPIO46 | None |
{"NAME":"ESP-12H","GPIO":[1,1,1,0,0,1,0,1,1,1,1,1,1,0,0,0,0,0,0,1,1,1,1,1,0,0,1,0,0,0,0,0,1,1,0,0],"FLAG":0,"BASE":1}
Read my guide on replacing a compatible module.
Early line of ESP-12H modules has a labelling error. IO28 is supposed to be IO29. The image above is the correct pinout.
Flashing
Flash using Tasmota Web Installer and select Tasmota ESP32-S2 option.
For esptool.py download i.e. tasmota32s2.factory.bin
and run esptool.py write_flash 0x0 tasmota32s2.factory.bin
To put ESP32-S2 in flash mode GPIO0 needs to be pulled low.
You can purchase (AliExpress, Amazon, Banggood) a test board for effortless flashing.
Running
ESP32’s are power hungry on boot and the USB to serial adapter might not be able to provide enough power for that. Use a stable 3.3v power supply that can supply more than 500 mA.