Mobile or CLI utility for performing BLE OTA DFU

RE: Mobile or CLI utility for performing BLE OTA DFU

mbprx — Fri, 11 Oct 2024 15:00:41 GMT

That's an interesting idea -- I'll take a crack at the nrfutil PC script first and then try this if that gives me too much trouble. Thanks for the detail!

RE: Mobile or CLI utility for performing BLE OTA DFU

Aleksander Nowakowski — Fri, 11 Oct 2024 08:02:14 GMT

Hello,

Android dev here. nRF Connect for Android supports a feature called "Automated Tests". It allows Secure DFU. Here you may find some documentation: https://github.com/NordicSemiconductor/Android-nRF-Connect/tree/main/documentation/Automated%20tests

Idea is as follows:

1. Write a script in XML which will scan for some packet and start DFU on the found device.
2. Copy required ZIP for the DFU onto the phone. Make sure nRF Connect has access there, so most prob it needs to be put into app's private folder: Android/data/no.nordicsemi.android.mcp/Tests, or something like that.
3. You run the test from a connected PC using batch/sh script, like written in the doc. Currently there's no easy way to trigger the test without a PC, but it's just based on an Intent, so perhaps Tasker app or similar can do this.
4. If you repeat the test multiple times (you may just copy <run-test> tag many many times in the XML, it should just go one by one and update all devices. I hope there's a difference in the adv packet of devices before and after the update.

Anyway, I think using nrfutil and a script on a PC will be easier.

RE: Mobile or CLI utility for performing BLE OTA DFU

mbprx — Thu, 10 Oct 2024 16:08:59 GMT

Appreciate the advice, I'll give nRFUtil a look like you suggest. Let me know if you hear anything on the mobile end otherwise!

RE: Mobile or CLI utility for performing BLE OTA DFU

Hung Bui — Thu, 10 Oct 2024 13:34:18 GMT

Hi Miles,

I will try to get the nRF Connect mobile app developer to take a look.

But if you want to go with the desktop route, I would suggest to use nrfutil (nRFUtil for nRF5 SDK https://docs.nordicsemi.com/bundle/nrfutil/page/guides-nrf5sdk/intro.html )

You can see here that you can start a DFU process with command line and you can use a script for that. If they advertise with the same name then you don't need to modify anything, just use the device name as the filter, or you can use BT address. In that case a script needed.