The idea here was to capture motion data in real operating conditions — vibrations, orientation changes, transient events — without depending on a permanent network connection.
The system is built around an ESP32-S3, chosen for its processing power and built-in Wi-Fi. The IMU samples continuously, data gets timestamped, and it’s stored either on a microSD card for long sessions or transferred directly over Wi-Fi for quick access.
Both modes coexist, which gives real flexibility: leave the device running in the field without a network and retrieve the data later, or tap into live measurements if you’re within range. Compact, autonomous, and actually useful on a real job site.