Sonoff IFan03 Fan
Model reference: IM190409021
Sonoff IFan03
GPIO #Component
GPIO00 Button1
GPIO01 Serial Tx
GPIO02 None
GPIO03 Serial Rx
GPIO04 None
GPIO05 None
GPIO09 Relay1i
GPIO10 Buzzeri
GPIO12 Relay3
GPIO13 Led1i
GPIO14 Relay2
GPIO15 Relay4
GPIO16 None

Sonoff offers a RM433 remote that works natively with this device.

For US (fan speed capacitors) - https://github.com/arendst/Tasmota/issues/5988#issuecomment-515720388

Photos - https://github.com/arendst/Tasmota/issues/5988#issuecomment-510177762

Disable buzzer with command SetOption67 0

The button is connected to GPIO0

If you want the light and fan to turn on when you power on your IFan03, use PowerOnState 1 If you want only the light to turn on when you power up, use PowerOnState 0 and then Rule1 on power1#boot do backlog fanspeed 0; power1 1 endon