Ant+ tranceiver nRF52832

I am working on making an airspeed sensor that can be connected to a garmin cycling computer over ant+
I will use the environment chanel and instead of inputting temperature data I will replace with windspeed, this will be used to calculate the CdA of a cyclist.
I have an arduino windspeed sensor working and now need to send this data over ant
To do this I have a sparkfun nRF52832 breakout board that was adveritsed with having ant capabilities however i cant find any reference material on how to actualy use this feature.
could anybody help?
I am not sure whether there are any other boards avaliable to transmit over ant+ or if i am just being stupid like the novice I am