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
April 17, 2026
April 17, 2026
April 17, 2026
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April 15, 2026