1channel relay - hhaim/hass GitHub Wiki

https://github.com/arendst/Tasmota/issues/453

1. connect it to the 5V and GRD from the programmer
2. push the lower button (it will set GPIO 0 to ground ) for programing
3. Solder the Rx/Tx and connect to programer
4. postprogramming set it to 12 configuration (tasmota) and push the upper button to change the mode
5. Connect an antenna to #1 if needed