QS-WIFI-D02-TRIAC-2C

Conversion of QS-WIFI-D02-TRIA-2C Tuya based dimmer to Tasmota fw. The device is MOSFET based not TRIAC as stated by device name.

Install TASMOTA

Flashing of ESP8266 (LM1) can be done through Tuya-Convert, but future update could fix it. It is always possible to flash it via serial (remembering to disable the two STM mcu chip connecting EN pins to GND).

REMEMBER to flash a Tasmota build with script enabled.

Set-Up Tasmota

TEMPLATE:

{"NAME":"QS-WIFI-D02","GPIO":[255,148,255,149,38,43,255,255,37,42,255,255,255],"FLAG":0,"BASE":1}

Console:

• Enable Multi-channel PWM (to make the color channel a second brightness channel) SetOption68 1
• Update of Dimmer/Color/CT without turning power on (decouple Channel and Power): SetOption20 1

Script:

Copy and paste the Dimmer-QS-WiFi-D02-Script.txt

Troubleshooting

The device seems to be effected by conducted interference on SW pins. This is probably due to coupling with main 50/60Hz and the design of internal voltage divider (see Input SW circuit). An easy solution to this is add a 2MOmh resistance in series to each SW channels.