OBD-II / OBD2 Development Board – K-Line & CAN Bus – 3.3V and 5V Logic – Compatible with Arduino, ESP32, Raspberry Pi (K-Line, 3.3 Volts)

Unlock complete access to vehicle diagnostics with this OBD-II / OBD2 Development Board, designed for makers, automotive enthusiasts, and embedded-system engineers. Each board comes ready to use with an OBD2 cable included, plus a built-in automotive-rated fuse for safe testing on any 12V vehicle system. This board supports both 3.3V and 5V logic, making it fully compatible with ESP32, Arduino, Raspberry Pi, STM32, Teensy, and nearly any microcontroller platform. Whether you’re building a custom dashboard, reverse-engineering vehicle data, creating a logger, or developing an advanced car-tech product, this board provides a reliable and simple way to interface with real vehicle OBD data. Choose the version that fits your project: K-Line, CAN Bus, 3.3V Logic, or 5V Logic. Every model uses clearly labeled pins, noise filtering, voltage protection, and stable automotive-grade components to ensure accurate and safe communication with your vehicle. Use it to read live sensor data (RPM, speed, coolant temp), capture CAN frames, test OBD-I/OBD-II protocols, or build your own diagnostic tools. With the included cord, simple wiring, and example code, you can go from idea to working prototype in minutes.

• Includes OBD2 Cable & Fuse – Comes with a ready-to-use OBD2 cord and a built-in automotive fuse for safe, reliable vehicle connection.
• 3.3V or 5V Logic Compatible – Works seamlessly with ESP32, Arduino, Raspberry Pi, STM32, Teensy, and more.
• Automotive-Grade Protection – Built-in power regulation, reverse-polarity protection, and noise filtering ensure stable, safe readings from any 12V vehicle.
• Supports Major OBD-II Protocols – Works with ISO9141, ISO14230 (KWP2000) for K-Line vehicles and ISO15765-4 CAN for modern CAN Bus systems (11-bit & 29-bit IDs).