Does espruino support bonding with a pin?

There's no ETA at the moment, I just put it in there so I didn't forget. If this is actually the same camera then you'll probably be disappointed - as above it appears to use indications which aren't in Espruino yet either.

Which camera is it? It's very difficult for me to develop if I have no way to test.

Specifically what do you want to do?

• The camera displays a PIN which you have to enter
  
• or: Espruino should display a PIN that you have to enter on the camera
  
  

It looks like the latter one is easier (or at least more obvious) to do.

@user63214 could you share the code you used with sd_ble_gap_auth_key_reply?