I bought the 3 gang switch wanting to install Tasmota and add it to my Home Assistant setup. Previous buyers have reported being able to install Tasmota, so I went ahead. However, there was an internal change and the switch does not use ESP8266 but WR 3 instead, see picture of pcb. This means no Tasmota. Future buyers intending to flash Tasmota on the switch, beware, this is not possible anymore.