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.

PCB design Vario 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.

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

Firmware for Larus sensor MK1 and MK2

Firmware recent pour GnuVario

Variometer (variable inductor) OpenSCAD generator and related files

Lua applications for JETI DC/DS transmitters

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

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

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

Vario Gps parapente ESP32-2432S028 tactile