A software Variometer.
A software Variometer. This application uses Kalman filter to estimate climb/descent rate from barometric sensor and accelerometer data. The estimation is displayed on a dial indicator, with optional sound indication. Does not need weather information to work.
Source code is avaliable on GitHub:
https://github.com/igorinov/Variometer
January 16, 2026
January 16, 2026
January 16, 2026
January 16, 2026
January 16, 2026
January 16, 2026
January 16, 2026
January 15, 2026
January 15, 2026
January 15, 2026