The first project I made with the nrf52840 was something I really needed for a while, a tiny device with BLE that let’s me skip songs pause, and undo skip, when it’s winter and I have gloves (on my bike) and a song comes on which I’m just not in the mood for, it’s annoying to take them off and ykkkk, with summer it’s the same except my headphones have captive controls which were so annoying I turned them off. I needed a low power device so the nrf52 is a great choice, I haven’t tested the true battery life but it’s probably good enough. currently I only have the firmware on my github which works 100%, as for any case for the device is not yet made and might not since my bike computer has this skipping song function already built in.

Thanks for reading, have a nice day!