Watch a raw gyroscope drift while a Kalman filter stays level, live on a BNO055 and a Raspberry Pi 5 🧭
Measure fishing line with a Hall sensor, six magnets and a large OLED readout. Open-source firmware and printable enclosure included.
A learning light meter: ESP32 reads an LDR module on GPIO34/35 and streams raw values over Serial.
Project #15: Environment – RTC (Real-Time Clock) – Mk52
