Sorry, my fault

arendst 2017-05-19 11:45:04 +02:00
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## 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](https://github.com/gadjet) installed a jumper in place of R21 allowing easy programming (jumper in), pairing (jumper out) and normal use (jumper out).
<img alt="RF jumper" src="https://github.com/arendst/arendst.github.io/blob/master/media/sonoffrfjmpr.jpg" align="left" />
### 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.