Bluefy - notifications support

[Dima1322]

Describe the bug
Notifications are not working in Bluefy browser on ipad 10.2 (2021) - iPadOS 16.1
Bluefy browser: https://apps.apple.com/us/app/bluefy-web-ble-browser/id1492822055
Read/Write operations work.
In the native version (generated using capacitor) of the same app notifications work well.
Web Bluetooth API notifications also work (for testing was used this sample: https://googlechrome.github.io/samples/web-bluetooth/notifications.html).

Plugin version:
"@capacitor-community/bluetooth-le": "^2.0.1"

[Dima1322]

I have also tested this on iPhone 13 pro with iOS 16.2 . The same issue occurs.

[pwespi]

Thank you for the issue. I was able to reproduce it.

In the Bluefy Bluetooth logs, I see the following error:
StartCharacteristicNotifications: Request was rejected.

However, I have no idea why this happens and don't know how to debug Bluefy. I contacted the Bluefy support. Hopefully they can help.

[y3nd]

Same issue here.

Any news from Bluefy ? The war might have impacted their activity..

[pwespi]

I haven't heard back from Bluefy yet.

[AurelienGasser]

@pwespi any update from Bluefy?

[pwespi]

No, I still haven't heard from Bluefy.

[dugrema]

This is still not working with iPhone 7 (iOS 15.8.1), Bluefy 3.9.0.

I was able to avoid the error (StartCharacteristicNotifications: Request was rejected.) by adding both the notification and indicate flags to the characteristic description in the peripheral. But the notifications are still not being processed.

If you do Object.getOwnPropertyNames(Object.getPrototypeOf(characteristic)) on the characteristic object, the one in bluefy (unlike Chrome) does not have the oncharacteristicvaluechanged event handling property. I'll venture that the event driven notification feature is simply not implemented or works very differently...

I'm using a RaspberryPi Pico W as peripheral. The same javascript code works with Chrome 116+ on Mac OS 10.13 and Windows 10.

The readValue and writeValueWithResponse operations are working fine for me in Bluefy.

[rebtop]

Is Bluefy a viable app considering that they don't respond?

[curlyz]

Hey guys, just come across this. I can help if there is sample code. I have use BlueFy for 2 Bluetooth products using ESP32. Work normal for me. Here is things to watch out

• Make sure you have location service enabled for the device
• For the bluetooth setup process, have a delay between each call, requestDevice, findService, findCharacteristic, startNotify ... (I use 500ms delay, this is due to WebBluetooth problem)

[rebtop]

Can you explain how you integrated BlueFy into your WEB site?I have been trying to find out for a while now. BobSent from my iPhoneOn Apr 15, 2024, at 3:26 AM, curlyz ***@***.***> wrote: Hey guys, just come across this. I can help if there is sample code. I have use BlueFy for 2 Bluetooth products using ESP32. Work normal for me. Here is things to watch out Make sure you have location service enabled for the device For the bluetooth setup process, have a delay between each call, requestDevice, findService, findCharacteristic, startNotify ... (I use 500ms delay, this is due to WebBluetooth problem) —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you commented.Message ID: ***@***.***>

[AmirHmZz]

@pwespi I’ve encountered the same issue. I was using this plugin to indicate on the GATT server and listen for notifications, but none were received on the client side. After switching to the Web Bluetooth API directly, everything works on Bluefy (notifications included). So it seems the problem lies in the plugin, not Bluefy.