I am super new in the .fit world and I am looking to create .fit files from data that I record using a raspberry pi. I figured that the easiest way (as a beginner) would be to use FitCSVTool.jar after formatting the data like the CSV files provided in the SDK. I have been playing with FitCSVTool.jar and the example files provided in the SDK, however I am wondering if it is possible to create a .fit file just from a custom CSV file. Is it possible to add/create new fields, like Field 6: doughnuts_earned and Units6 :doughnuts in the DeveloperData.csv example ?
thanks for your help