GPS altimeter/variometer with LCD display, routes with waypoints, data/gps track logging, bluetooth NMEA sentence transmission, wifi AP + webpage configuration

FreeVario for paragliders

CVT Addon

vSpeed Vario - DIY Paragliding Variometer

A bluetooth audio vario with zero-lag climb/sink rate feedback. Configurable and firmware upgradable via WiFi. Uses off-the-shelf modules. Schematic and PCB layout provided.

SkyBean audio variometer

This is a Jeti ExBus Sensor package which runs on a 328PB. This sensor supports 3x voltage, 1x current and 2x rpm measurement. You can connect GPS (location, ground speed ...), BME280 (pressure: altitude, vario, temperature), BNO055 (orientation, roll, nick, magnatic compass)) and Kontronik ESC. Outputs are 3x flash (position) lights, 2x blinkin…

This project aims to give Vario Vent decentralized ventilation systems a second life. The company behind it went bankrupt and as soon as a sensor fails the ventilators refuse to work and tell you to contact the support.

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

SkyDrop combined variometer