Sonoff RF - pauloromeira/Sonoff-Tasmota GitHub Wiki

Serial connection

The Sonoff RF needs some tweaking as the connection needed during programming between the button and GPIO0 might not be present.

Phalox explains the case with a picture where you have to install a jumper wire for R21. I received the same result using a small screwdriver and shorting both solder pads of R21 while holding down the button during programming.

Pairing the iTead RF remote controller is the same as with the original iTead software:

• two short button presses will blink a red led shortly and start RF signal recognition. Three longer blinks signal RF reception.
• three short button presses will keep the red led on for some seconds and erase the known RF code.

I was unable to pair the Sonoff RF 434MHz receiver with my KaKu switches but the iTead provided remote control works just fine.

Pairing a RF remote control

During programming a connection for R21 is needed in order to use a button press to ground GPIO0.

To pair a RF remote control with the Sonoff RF it is important that there is NO connection made for R21.

User gadjet installed a jumper in place of R21 allowing easy programming (jumper in), pairing (jumper out) and normal use (jumper out).

Procedure

Pairing the iTead RF remote controller is the same as with the original iTead software:

• two short button presses will blink a red led shortly and start RF signal recognition. Three longer blinks signal RF reception.
• three short button presses will keep the red led on for some seconds and erase the known RF code.

I was unable to pair the Sonoff RF 434MHz receiver with my KaKu switches but the iTead provided remote control works just fine.