• PCB: https://easyeda.com/iforce2d/radiosonde-board
• Arduino sketches: radiosondeSketches.zip
• Android app source: radiosondeTrackerAndroidSource.zip
• Android app: radiosondeTracker.apk
• Receiver setup: receiverSideArduino.png
• Flight 1 data: recordedData/

v2

• Arduino sketches: radiosondeSketches_v2.zip
• Android app v2: radiosondeTracker_v2_portrait.apk
• Android app v2: radiosondeTracker_v2_landscape.apk


• Android app v2 (updated for newer APIs 2022): radiosondeTracker_v2_portrait_sdk31.apk
• Android app v2 source: BalloonTrackerV2.zip