If you're curious about combining real-time vehicle diagnostics with wireless IoT, this webinar is worth a closer look. In just under an hour, our Senior Engineer Saad Imtiaz walks through the full development of a custom OBD2 dashboard built around an ESP32-S3 with a capacitive touchscreen, designed to display live engine data directly from the vehicle’s ECU.


You'll learn how OBD2 communication works, including the request-response model using Parameter IDs (PIDs) like RPM, coolant temperature, or throttle position and how to parse and convert those responses into usable values. Saad explains how he selected and interfaced with an ELM327 adapter via UART, avoiding Bluetooth for a more stable connection.

The video includes details about a nice 3D-printed enclosure made from PETG, heat-resistant for in-car use, plus tips for SD card logging, DTC alerts, and UI design using Arduino GFX. There's also a section on integrating LoRaWAN and GPS, paving the way for remote telemetry and fleet monitoring.

If you’re interested in building a DIY dashboard or exploring LoRa-based telemetry, this video offers a detailed look at what's possible, from protocol basics to firmware architecture and enclosure design, without relying on commercial apps or cloud services. Watch the video below:

Explore More Elektor Webinars and Electronics

Want to learn more about OBD2, sensors, wireless communications, or electronics in general? Check out all the educational videos and tap into the knowledge of experts on our Elektor YouTube channel and our Elektor Industry YouTube channel. Subscribe to Elektor's weekly newsletter to receive a regular flow of expert tech knowledge and insights.