It's not a bug, it's a feature

[1N4148]

I've made a small PCB that fits under a legacy wall switch into the wall box. If it's interesting I'll share the gerber files for the PCB

[nurikk]

Hi! PR are always welcome! You can upload files into hardware directory

https://github.com/diyruz/freepad/tree/master/hardware

[jmvaz]

Nice!!! Can you share the PCB? Whats the purpose of the switch on board? Is the pairing switch?? It would be nice to be able to pair the device without disassemble the wall plate!

[1N4148]

These are my Eagle 7.5.0 Files. Have fun :)

E18-MS1.zip

It's the pairing button. As I use this board with switches instead of buttons only SW5-8 are exposed for external switches.