OpenIVario Wiki:

vSpeed Vario - DIY Paragliding Variometer

An ESP32 based variometer made for paragliding. (GPS, variometer, altimeter, compass)

Kicad schematic and layout for ESP32-C3 + MPU9250 + MS5611 audio vario

Vertical speed indicator for Android devices (including wearables) with barometric sensor.

An XCSoar-targeted sensor using esp32, mpu6050 in DMP mode and ms5607 (despite the class names) pressure sensor and GPS, publishing NMEA sentences on serial port.

PCB design Vario sensor

GPS/SD Arduino based Paragliding Variometer

ESP32 based realtime Variometer for paragliding and hanggliding

This module contains the algorithms for the larus soaring flight sensor

Overview and entry point for Project

https://vimeo.com/328926980 quick and dirty hack to get good vario performance with huawei mate 20 lps22hb pressure sensor

Lua applications for JETI DC/DS transmitters

Firmware for Larus sensor MK1 and MK2

Firmware recent pour GnuVario

Variometer (variable inductor) OpenSCAD generator and related files

Arduino-based "autopilot" code for soaring model airplanes.

Yet another vario based on ATmega328, BME280 baro sensor and SSD1306 OLED display

Vario Gps parapente ESP32-2432S028 tactile

3D printed custom case for Kobo Mini and BlueFly Vario.