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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.

ESP32-C3 audio vario using Kalman filter to fuse acceleration and pressure sensor data. Bluetooth transmission of LK8EX1 sentences.

USB variometer for XCTRACK base on ms5611 high precision pressure sensor

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U8glib library for monochrome displays, version 2

天涯 kkndme 神贴聊房价

Text only Arduino Library for SSD1306 OLED displays

Library for SX12XX LoRa devices

Universal wireless communication library for embedded devices