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Volandoo BLE Vario

Notes:

A 500mAh battery will give you about 7 hours of flight time when fully charged. I recommend using a 1000mAh battery instead

The vario will try to connect to another device but shut down automatically if it can't connect within 6 seconds. Once connected, it will shut down when disconnected.

Once shut down it will wake up again when the button is pressed. The battery will last a long time when the vario is shut down. But just in case, charge it before going flying.

Requirements:

  • Lolin32 Lite (ESP32 Chip with battery charger)

  • MS5611 Barometer

  • Lipo Battery

  • Button

Instructions:

Wire connections:

MS5611 ... Lolin32:
   GND  -  GNG
   VIN  -  3V
    19  -  SDA
    23  -  SCL

Button to Lolin32:
  16 and 33

Battery: plug it in.

Acknowledgements:

All the code here is written by me with the exception of the MS5611 library. The altimeter algorithm was inspired by the XCSoar and BlueFly open source projects.

MIT License