Nano 33 BLE Rev2 - Unable to connect to BLE tag

Official Hardware Nano Family Nano 33 BLE Sense
1

I'm trying to use my Nano 33 BLE Rev2 to connect to a BLE tag i have.

I used the example from the ArduinoBLE repository: ArduinoBLE/examples/Central/PeripheralExplorer/PeripheralExplorer.ino at master · arduino-libraries/ArduinoBLE · GitHub

I'm able to scan and display available BLE Devices but i can never connect to them, it always fail.
The tag is an "Ultrbeka" one I ordered on Amazon and i can easily see it on my phone using LightBlue or BT Inspector on iPhone and also list its characteristics.
Hereunder a screenshot of one of the service:

WhatsApp Image 2024-10-25 at 21.53.38
WhatsApp Image 2024-10-25 at 21.53.381170×1689 108 KB

The board seems to work as i was able to create a fake device "Blank" on LightBlue and make it discovered by my board:

Bluetooth® Low Energy Central - Peripheral Explorer
Found 5f:c2:35:83:0b:b8 'Blank' 
Connecting ...
Connected
Discovering attributes ...
Attributes discovered

Device name: iPhone
Appearance: 0x0

Service 1800
	Characteristic 2a00, properties 0x2, value 0x6950686F6E65
		Descriptor 2803, value 0x020500012A
		Descriptor 2a01, value 0x4000
	Characteristic 2a01, properties 0x2, value 0x4000

[skipped]

Service 1111
	Characteristic 2222, properties 0x2, value 0xFFFF0000F0F0F0F0

Disconnecting ...
Disconnected

I'm really wondering why i cannot connect to anything else than this fake service with my board ?

My goal with this project is to continuously scan for BLE devices and once i found the one matching my tag (reading specific service UUID and characteristic) i will open a pet door. I want to put this tag on my cat and then open the little pet door automatically :slight_smile:

Thanks in advance !

2

Hello,

Can you please :

  • Verify BLE Tag Compatibility: Ensure that the BLE tag operates on standard BLE protocols and doesn't require poprietary methods fo connection.

  • Review Security and Pairing Requirements: Some BLE devices necessitate pairing or bonding before establishing a connection. The ArduinoBLE library currently doesn't support pairing. If the BLE tag requires pairing, this could be the root of the connection issue.

  • Update Firmware and Libraries: Ensure that your Arduino board's firmware and the ArduinoBLE library are up to date, as updates may resolve compatibility issues.

Best regards,

3

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