Puck.js whitelisting failure

Hello,

I've been unsuccessfully trying to whitelist connections to my Puck.js (firmware 2.01) the last few weeks, so I figured it was time to throw a lifeline in hopes someone can help identify what I am doing wrong. I've tried with my Samsung S9, Samsung S8+, and Windows Surface Pro using the following code snippet as a guide:

NRF.on('connect',function(addr) {
  if (addr!="69:2d:94:d0:9d:97 public")
    NRF.disconnect();
});

I've double checked the MAC addresses several times, and have tried string combinations of just the mac address, and both "public" and "random" extensions as described here:(https://www.espruino.com/Puck.js+Security).

The only result I get is refusal of all connections to Puck.js.

Any help would be much appreciated.

Thank you.

There was a post here last week where someone hit something that might be similar.

You could try:

devices = [];
NRF.on('connect',function(addr) {
  devices.push(addr);
});
// now connect a few times and see what's in 'devices' using the left-hand side

On some Android phones there's a 'security feature' which basically randomises the Mac address every time the device connects, which means that the whitelisting is basically useless. It's possible it's the problem - but the above code might help.

Your other option is to install a 'cutting edge' Espruino firmware and enable 'passkey' pairing: http://forum.espruino.com/conversations/330007/#14600298

Because it's not in the 2v01 firmware it's not documented in that Security page yet, but it might do what you need?

Gordon,

Your post was extremely helpful in debugging my random MAC address issue. I will flash the latest Beta firmware and enable passkey pairing.

Thanks again!

No problem - glad it helped!