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Avatto 3 Gang Switch
EU
Model reference: TS02-3
Avatto 3 Gang

Available from:
Aliexpress.com






Install method:
USB to Serial

GPIO #Component
GPIO00 None
GPIO01 None
GPIO02 LedLinki
GPIO03 Button 1
GPIO04 Relay 2
GPIO05 None
GPIO09 None
GPIO10 None
GPIO12 Led_i 2
GPIO13 Relay 1
GPIO14 Led_i 1
GPIO15 None
GPIO16 Button 2
GPIO17 None
Configuration
{"NAME":"AVATTO 2 Gang","GPIO":[0,0,576,32,225,0,0,0,321,224,320,0,33,0],"FLAG":0,"BASE":18}

This one came with new firmware, so tuya-convert didn’t work. But it’s quite easy to disassemble – the top PCB holds on 2-sided duct foram and pin header. The pins on top PCB have VCC 3.3V(lowest) and GND(one above VCC), those can be used to power it up directly from RPi. And you can also flash it with RPi following this guide: https://siytek.com/how-to-flash-esp-devices-with-tasmota-using-raspberry-pi/