based on stm32 black pill, it managed to print a calibration cube, but i gave up on calibration because noise was everywhere (no wonder why :p)
Telemetry for my air gun on esp32
I made a ballistics computer for my air gun that has an optical DIY chronograph, hacked cheap Chinese laser distance meter, an IMU, some other equipment and a phone app to gather all that data for later.
ESP32S3 power delivery source
I made a usb c power delivery charger without using any dedicated chips for that, everything implemented in software on esp32s3.