TL;DR
Open RC Spotter is an open-source telemetry and data logging system specifically designed for remote-controlled (RC) cars and toys. Created by Jake Wachlin from Energy Labs, it utilizes the ESP32 microcontroller to log various performance metrics, including GPS position, acceleration, gyroscopic data, steering, throttle, battery voltage, temperature, and lap timing. This data is stored on a microSD card, and it also supports live telemetry via Wi-Fi and ESP-NOW, enabling real-time monitoring of your RC vehicle’s performance.