Binding helper RX

Most receivers need some tool to press the binding button. If that needs to be done during power up, it get's difficult. With Futaba I didn't have problems as the binding is done after power up. Now I have Frsky.
So I made this part. It has three different pins for different receivers. I think it will also work for other brands. Just put it on the RX and even pressing with the palm will suffice during power up.