Duplicate homeKit QR codes

[chrisroden]

I have two of these devices and they both show the same QR code. Is it possible to force one to generate a new one? I've tried unpairing and rebooting but this didn't change the anything.

thanks in advance.

[dkerr64]

You are right... pairing code is hard coded. This is mostly okay, but I am aware that if two or more un-paired ratgdo's are active on a network then you are likely to run into problems when pairing to HomeKit. If you only have one un-paired device active then it is okay.

But I should really research what the proper way to do this is... to assign a unique pairing code. So lets keep this issue open to track that.

[chrisroden]

Thanks for the reply. In the time being I will attempt unplugging one, pairing the other, and then plug in a pair the other.

[dkerr64]

I have implemented a fix to this in the ratgdo32 code base. Not sure if I will be able to implement it in this version or not, but I will try when I turn my attention back to this version.

Fix is to generate a unique-ish QR setup ID based on MAC address, which I believe will solve this problem.

[chrisroden]

Thank you, I appreciate you getting to this so quickly! I will be patient with regards to getting it merges and released (which ever version that may wind up being).

[MatthewAMEL]

Greetings all. New here. Sorry if I don't give you all the info you need.

Purchased 3 ratgdo discos last week. Installed the first two on my garage doors with no issue. However, when I try to install the 3rd to HomeKit, I get an error that says 'garage door' is already installed and it gives me the option to go to the 1st device I installed.

I have ensured all three devices have unique bridge names and unique common names, but every time I try to add the third device, it tells me it's already installed.

All three devices are up on the 3.0.5 firmware and I can see all three in a browser. The Home Hub is an AppleTV running iOS18.2. I have about 20 HomeKit native devices attached and they all work fine (including the two other disco's).

Paul asked that I post my experience here.

[dkerr64]

Please try the 3.0.6 firmware for ratgdo32. It includes an update to generate unique QR codes for each device.

The problem occurs during pairing when multiple ratgdo's are connected to the network and not paired... attempting to pair causes all of them to respond rather than just the one you need to pair, and as you can imagine that is not good... things get out-of-sync quickly. That is because we originally hard coded a pairing code that was same to all devices.

This is now fixed so hopefully will solve your problem. You may have to unpair/re-pair those already working, I don't know, but hopefully not.

This change has not been implemented in the ESP8266 version yet.

[MatthewAMEL]

Thanks for that. I will update all three and report back in the next day or so.

[MatthewAMEL]

Please try the 3.0.6 firmware for ratgdo32. It includes an update to generate unique QR codes for each device.

The problem occurs during pairing when multiple ratgdo's are connected to the network and not paired... attempting to pair causes all of them to respond rather than just the one you need to pair, and as you can imagine that is not good... things get out-of-sync quickly. That is because we originally hard coded a pairing code that was same to all devices.

This is now fixed so hopefully will solve your problem. You may have to unpair/re-pair those already working, I don't know, but hopefully not.

This change has not been implemented in the ESP8266 version yet.

The new firmware resolved my issue. I now have all three added to HomeKit.

Thanks for your assistance.

[dkerr64]

Good, thanks for confirming.