ANT+ examples not working on NRF52840

[black_lives_matter]

Hi.

I am familiar with Nordic NRF51 and NRF52 as I developed OpenSource firmware for chinese ebike displays with them and using the provided examples for UART Bluetooth.

Now I have NRF52840 (2 different well known dev boards) and on all them I tested the the ANT+ examples HR TX and RX, as also the multiprotocol with ANT+ and BLE HR sensor. The ANT+ part never works for me but Bluetooth do work.

I see the Bluetooth device on mobile. As for ANT+, I can't see the sensor when testing the TX example - I am using a Garmin Edge and the PC with ANT USB stick, none detect. And I use a Garmin watch as HR sensor ANT+ HR broadcast so I know my receivers are working.

When I debug the code with breakpoints, I can see the code that is called to send data to softdevice to send over ANT is called... On the other side, on the RX example code, the break point for the call back for receiving data from ANT is never called.

On the multiprotocol example code, the Bluetooth code part works but the ANT code does not, it does not receive anything, the callback is not called...

Please help me. Thank you.

[black_lives_matter]

So, seems that I need to put the ANT_PLUS_NETWORK_KEY on file ant_key_manager_config.h:

#ifndef ANT_PLUS_NETWORK_KEY
#define ANT_PLUS_NETWORK_KEY {0, 0, 0, 0, 0, 0, 0, 0} /**< The ANT+ network key. */
#endif //ANT_PLUS_NETWORK_KEY

It should work but the https://www.thisisant.com/ is not working temporarily now so I can't get my keys and test. I will let you know when I get it working.

I wish there was a ERROR while compiling alerting to this instead of using a 0000 invalid key.

[Kenneth]

I agree a warning would be nice, but good to hear you have found the problem.