Bluefy connection to watch or puck.js

[pinq-]

I'm trying to connect to watch with Bluefy and I can see the device and select it and then it connects for second and then it disconnects. BLuefy doesn't give any error message. This happens with watch and puck.js. If I try to connect to ide I get error: "connection Failed: TypeError: JSON.stringify cannot serialize cyclic structures." So I don't know who doesn't want to speak: espurino or bluefy.
Anyone else have same problem?

Everything works fine with WebBLE, but they don't develop it forward and it has a lot of bugs.

[gfwilliams]

Which pages are you trying to connect with? Obviously the IDE, but the other one you were having trouble with was https://banglejs.com/apps/ ?

What about https://espruino.github.io/EspruinoWebTools/examples/uart.html which is a really basic test of Web Bluetooth?

I haven't heard of issues before. There are other iOS browsers (they seem to come and go) like https://apps.apple.com/us/app/ble-link-web-ble-browser/id6468414672 that might behave better.

If WebBLE (and normal browsers outside iOS) work I'd be tempted to blame Bluefy. If you could get the console logs somehow I could look and see if that JSON.stringify error came from our code and whether there's something that could be done to fix it on our side...

[pinq-]

Didn't work with the basic test also.
The ble-link is most likely vibe coded or some mod from old browser.
Yeah, I think it is bluefy problem. I try to connect to them with no luck, so I will try something else.

[gfwilliams]

Please can you try https://espruino.github.io/EspruinoWebTools/examples/uart.html and the Web IDE now?

I had a quick look and I spotted that when connecting all the espruino libraries use JSON.stringify to output some log messages (which aren't even shown by default anyway), and if Bluefy output a circular structure for the charactertistics (which is likely) then it would fail and cause the error.

I've attempted to fix it now so it'd be interesting to see if it works.

[pinq-]

Now it works! I tested with puck and bangle 2. Thanks!