Web Bluetooth DFU

Device firmware update with Web Bluetooth

Update device firmware via Web Bluetooth following the protocol here:

http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk52.v0.9.2/bledfu_transport.html?cp=4_0_2_4_2_4

Device Configuration

You will need an nRF51 or nRF52 development kit, flashed with the appropriate image:

nrf51_boot_s110.hex - an mbed bootloader merged with Nordic's s110 SoftDevice

nrf52_boot_s132.hex - Nordic's bootloader merged with Nordic's s132 SoftDevice

Upon flashing the device will be in bootloader mode and ready to receive a DFU transfer.

Web Example

Open this site in a Web Bluetooth enabled browser:

https://thegecko.github.io/web-bluetooth-dfu/

Node Example

Clone this repository, install the npm dependencies and execute.

$ npm install
$ node example_node <device-type>

Where <device-type> is one of nrf51 or nrf52.

Updating the SoftDevice or Bootloader

The .hex files below can be transferred via DFU to test SoftDevice and Bootloader updates respectivley:

nrf52_softdevice_only.hex - Nordic's s132 SoftDevice

nrf52_bootloader_only.hex - Nordic's standard bootloader

Note: Currently updating the SoftDevice and Bootloader at the same time is not supported.