OBD-II Automotive Diagnostic Adapter with Wi-Fi

OBD-II diagnostic adapter PCBs with connector and white enclosure

Droid Technologies designed and developed a multi-protocol OBD-II diagnostic adapter for vehicle diagnostics, telemetry, and communication with automotive electronic control units (ECUs).

The device is based on the ESP32 platform and provides Wi-Fi and Bluetooth Low Energy (BLE) connectivity, allowing diagnostic data to be accessed wirelessly by mobile applications, service tools, and external software.

The hardware supports the major OBD-II communication protocols, enabling compatibility with a wide range of passenger and commercial vehicles.

Droid Technologies delivered hardware design, PCB development, embedded firmware, automotive communication interfaces, Wi-Fi/BLE integration, protocol implementation, and system testing.

Key features and engineering scope:

• ESP32-based embedded platform
• OBD-II vehicle diagnostics
• CAN / ISO 15765-4
• ISO 9141-2
• ISO 14230-4 (KWP2000)
• SAE J1850 PWM
• SAE J1850 VPW
• Wi-Fi connectivity
• Bluetooth Low Energy (BLE)
• ECU communication and diagnostic data acquisition
• Vehicle telemetry and parameter monitoring
• Custom PCB and automotive hardware design
• Embedded firmware development
• Wireless diagnostic interface
• Hardware and firmware testing

This project demonstrates Droid Technologies’ expertise in automotive electronics development, OBD-II devices, CAN bus development, vehicle diagnostics, ESP32 firmware development, Wi-Fi/BLE automotive devices, ECU communication, and embedded automotive systems.

Droid Technologies provides hardware design services, firmware development services, PCB design, embedded systems development, automotive electronics development, IoT development, wireless connectivity integration, prototyping, and full-cycle electronic product development.