Hi,
I received my nRF52840 yesterday, I believe I've set up my dev environment well-enough to run the demo programs supplied by Nordic (namely the proximity and heartrate monitor) demo. When I unboxed the DevKit and powered it on, I had a slow pulse on LED1, which indicates normal behaviour.
After installing nRF Connect and the programmer app, I added the HEX file from the proximity demo to the loader and chose "Write and Erase" to ensure I was writing on a clean slate. LED1 turns off, LED5 turns on and start flashing to indicate it's writing data; all good so far. The first instruction is to "Check that LED 1 on the nRF52DK is blinking. This indicates advertising."
However, LED5 is still on, and it stays on. LED1 does not blink. But here's the thing; when going onto the nRF toolbox on my iPhone, the board IS broadcasting on Bluetooth, and I CAN connect to it, and I DO get an alert when I am outside of the proximity! But why isn't the board behaving as it should? Apparently LED3 should blink when I press "find me" on the phone, the phone should have a manual alert if I press button1, but none of these work.
I've tried to wipe the firmware and reset the board by going into BOOTLOADER mode and adding the recommended .bin file it asks for, but the outcome stays the same.
Am I missing something? Why does the phone side work but the LEDs and buttons on the board not?
Any help and suggestions would be greatly appreciated.
Kind Regards,
SUVOLewis
