ANT Forum

I am working on a firmware for an Ant+ USB dongle I built for testing based on the nRF52840 SoC, and was able to collect data from a connected fitness (bike), and forwarded that to my PC through USB protocol. However, the format is something of my own, not what SimulAnt+ and other applications would comprehend.

Assuming there is a some standard format to follow, is there any source code or protocol specification documents that can help me format the data properly to talk to SimulANT+? I want to communicate with Zwift, and I am assuming that it follows the same standard, no?      

Review ANT+ Device Profiles: Device profiles describe how data should be structured and transmitted for various types of sensors (e.g., heart rate monitors, bike power meters). You'll need to format your data according to these profilessnow rider 3d

Access Documentation: The ANT+ Alliance provides detailed specifications, but these are typically available under a developer membership. You can sign up on the ANT+ website to access these documents.

Open Source Libraries: You can also look into existing open-source projects like the ANT+ C API or Dynastream SDKs to see examples of proper implementations.

Following the ANT+ specifications should allow your dongle to communicate correctly with both SimulANT+ and Zwift.