LerLink 1 Gang Switch (X801A)
Configuration (old format, will be converted to new template when applied)
This device uses WB3S module which needs to be replaced with ESP-12, ESP-C3-12F or ESP-12H . Besides the module, this process will require a heat gun, soldering tools and moderate soldering skill. Read more about module replacement in a detailed guide.
December 2022: This switch originally came with an ESP8266, but this recent purchase from AliExpress has a WB3S module. Looking at the dimensions, it is likely that an ESP module can be placed here, but this is untested. Note how the WB3S module is placed on backwards, with the package going through the PCB.