Serial Firmware Update

[Amal]

Hi All,

Is there any proper method for updating the firmware via serial port of nRF52840. The same process as arduino or esp32. Can we invoke the updation process with a GPIO and start updating the firmware via serial. nRF52840 is connected to a raspberry pi serially and some gpios for hardware trigger purpose between RPi and nRF. Can we download firmware form cloud and update it via serially to nRF with python?

[Hung Bui]

Hi, 
You can use our UART bootloader in the NRF5 SDK to handle DFU update. The DFU protocol is described here.

On the RPi side, you can have a look at my DFU master example here. It's for the nRF52 to update another NRF52, you would need to port the code to RPi. 

[Amal]

Thanks Hung. I will try with that.