OBD II diagnostic module - Car Diagnostics KIT - SparkFun RTL-10769

Index: SPF-01864 EAN: 845156001064

The module enables access to automotive diagnostics system OBD-II SYSTEMOBD-II diagnostic system installed in vehicles manufactured after 2001 in the European Union and after 2002 in Poland.

OBD II diagnostic module - Car Diagnostics KIT - SparkFun RTL-10769
€74.12 tax excl.
Discontinued product
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Manufacturer: SparkFun
Compatibility: Arduino


The product has been discontinued. Check other products in category.

Description: OBD II Diagnostic Module - Car Diagnostics Kit - SparkFun RTL-10769

The module enables access to OBD-II car diagnostics system, installed in cars produced after 2001 in European Union, and after 2002 in Poland. The system allows, among others, to read trouble codes (DTC - diagnostic trouble codes) stored in the memory, concerning the engine, electronic devices, etc. The system allows the use of the ELM327 command set through a serial interface.

Moduł diagnostyczny OBD II

The connection between the board and the car is done via DB9 - DLC 9 cable (included in the set). DLC is standard diagnostic connector used in OBD II systems. The standard defines also the way of communication with the on-board computer so called ECU (Electronic Control Unit). More information can be found in the manual.

The output of the module is the UART serial interface that enables connection with a computer via USB to UART adapter. On the board there is STN1110 chip that converts data from OBD II system to UART (RS-322) serial interface frames. It allows serial transmission of a standard set of ELM327 commands from a PC or a development kit (e.g. Arduino) to the central unit of the car.


A video made by SparkFun showing the product capabilities.

The specification of the OBD II Diagnostic Module

  • Compatible with the ELM327 AT command set
  • Compatible with the Extended ST command set
  • Communication: UART (speeds from 38 bps to 10 Mbps)
  • Secure bootloader, easy software update
  • Support for all OBD II protocols:
    • ISO 15765-4 (CAN)
    • ISO 14230-4 (Keyword Protocol 2000)
    • ISO 9141-2 (Asian, European, Chrysler vehicles)
    • SAE J1850 VPW (GM vehicles)
    • SAE J1850 PWM (Ford vehicles)
  • Support for OBD protocols:
    • ISO 15765
    • ISO 11898 (raw CAN)
  • Support for SAE J1939 OBD protocol
  • Automatic detection of the used protocol
  • Large memory buffer
  • Voltage input for battery monitoring

Package width 10 cm
Package height 13 cm
Package depth 3.2 cm
Package weight 0.277 kg

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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