Athom 3-Way Mini Relay Switch Module (RS01)
This device comes with Tasmota already installed!
- ESP8285 with 2MB flash
- Warning: S1 and S2 are input pins allowing only a contact / switch potential free. You can’t input any voltage, it is dangerous. Source: Support of Athom.
Photos of internals
I took the component apart to flash the device
You have to ground this POGO pin pad to ground in order to intialize serial flash (white wire)