Welaik 1 Gang Switch
Available from:
Aliexpress.com
Wi-Fi Module:
WB3S
Try to avoid similar devices from other sellers using same images and descriptions!
Flash a ESP-12F module with Tasmota. Then replace the module (WB3S) for a ESP-12F. The WB3S module is located on the back of the touch sensor PCB. Remove with care with low temperature air/soldering iron (ca. 200°C). Make sure the touch sensor does not melt!
Template
'{"NAME":"Welaik A911-WIFI 1gang","GPIO":[576,0,0,0,0,0,0,0,32,224,320,0,0,0],"FLAG":0,"BASE":1}'