Generate QR code

The “NF Interface” supports encoded links with the following structure:

https://nfinterface.com/scan?name=<device name>[&serviceUuid=<serviceUuid>]

In this format:

• device name unique device name. Can contain fixed app prefix and unique hash of bluetooth address. For example: lora-at-03ad. Both uppercase and lowercase formats are supported.
• serviceUuid - (optional) denotes the Service UUID that exposes its characteristics to the “NF Interface”.

In the simple scenario, the “NF Interface” search for adverisement from device name, connects to it and attempts to locate any recognizable BLE services and characteristics.

In the more complex scenario, a single Bluetooth controller can be utilized to relay information about non-Bluetooth devices. In such cases, each device should have own serviceUuid. And each individual serviceUuid encoded in the separate QR code. This is espetially useful if non-bluetooth devices connected by a wire to bluetooth controller or physically far away.