Essentially defining a service and characteristic on the puck which is what I think you are trying to do. The value from the characteristic can then be read using nRF Connect.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
The code I posted here works for me. Post
Essentially defining a service and characteristic on the puck which is what I think you are trying to do. The value from the characteristic can then be read using nRF Connect.