I2C CAN Bus Module

I2C CAN Bus Module

Arduino CAN Bus RP2040

CANBed RP2040 - Arduino CAN Bus RP2040 Dev Kit


OBD-II RF Dev Kit includes two parts: the transmitter and the receiver.
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OBD-II Arduino CAN Bus Board

OBD-II (short terms for On-Board Diagnostics, Second Generation) is a set of standards for implementing a computer-based system to control emissions from vehicles. Also, it can be explained as a vehicle's built-in self-diagnostic system. When your vehicle has an internal issue, normally it would pop up a malfunction indicator light on your dashboard, telling you to visit the broken mechanic and get the problem fixed. In the past, this light would just light up to indicate the vehicle is broken, but it was not possible to identify where the issue was. Nowadays, the OBD-II built inside vehicles, allows you to identify the exact problem of the vehicle by connecting an OBD-II reader to the OBD-II 16-pin connector built inside the vehicle. Through this, it has been possible to read OBD-II codes, also known as Diagnostic Trouble Codes (DTCs) which help understand the issues, and there is no need to completely disassemble the vehicle.

OBD-II pinout

Usually, there is an OBD-II interface on the vehicle for the user to read some data through the CAN-Bus interface, such as vehicle speed, engine speed, and oil temperature, etc. And 'RF' stands for 'Radio Frequency', it can help to transmit data through hundreds of meters without CAN-Bus or any cable. With the RF device kit, the data about vehicles can be transmitted wireless to other devices like microcontrollers.

OBD-II RF Dev Kit includes two parts: the transmitter and the receiver. The transmitter is inserted into the OBD-II interface of the vehicle, integrating with the CAN-Bus interface and RF communication. That means it can transmit the data read by CAN-Bus to the remote end through radiofrequency. The receiver is a Serial RF Module, which can send the data from the receiving end to the microcontroller through the serial port.

Additionally, if you want to build some interesting projects about using vehicle data and remotely processing with it, we highly recommend you use this OBD-II RF Dev Kit for your projects. Also, we have OBD-II Serial CAN Bus Dev Kit for fast and stable data transmission and an interesting project about car "hacking" using CAN bus via Wio Terminal, which is really fun.

Part List:

  • • The transmitter board with OBD-II Case x1
  • • The receiver module x1
  • • HY2.0 4-Pin Cable x1


  • • Communicating with CAN 2.0
  • • Transmitting data wirelessly through 2.4 GHz radiofrequency
  • • The standard OBD-II vehicle connector
  • • Easily using Arduino library to develop
  • • 120 meters communication distance in the wild


  • • MCU: Atmega 168PA
  • • Barurate: 9600
  • • Communication: 120m
  • • Power input of the transmitter: 12V
  • • Case Dimensions: 180mm x 110mm x 20mm
  • • Weight: G.W. 53g
  • • Battery: Exclude


  • • HSCODE: 8543709990



The above product not fully meet your needs? 

You can try PCS (Product Customization Service).

Payment Method

Payment Method:

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  • ● If you are inconvenient to pay with Paypal, bank wire transfer is also supported. You can tell us the product and quantity you need through order@longan-labs.cc. We will deal with your e-mail in time and send back a quotation to you. Goods would be delivered after payment checked and a track code would be provided to you.



  • ● Your package will be delivered from China and most countries all over the world are accessible.
  • ● 4PX is the logistics provider by default. The shipping fee starts as low as $5 and the delivery time is 7-10 days for north America and Europe. You can go to Logistice page to know the details of shipping fee and delivery time.
  • ● If you hope to receive your package faster, you can contact order@longan-labs.cc to choose DHL or Fedex.

After-sales Policy

After-sales Policy:

  • ● All of our products are strictly tested before delivered. But due to transportation and other factors, it is still possible to result in a defective product.
  • ● If you receive products fail to work, contact our tech-support engineer through support@longan-labs.cc who will answer the e-mail within 24 hours and guide you to check the problems.
  • ● After checked that it is a defective item, you can choose to get a refund or a new product without sending the existing one back.

About Longan Labs

About Longan Labs:

Longan Labs is an international platform offering open source products and customized service for global makers. It is also a co-creation laboratory, co-working with makers and connecting the project to customers. Our offering includes CAN Bus dev board, electronic modules for popular MCU platform and other open source hardware gadgets. We also provide PCS (Product Customization Service), developing controller board and modules as the requirement of makers and start-up teams.

Longan Labs is based on Shenzhen which has the most complete R&D and manufacturing resources. Core team members have over 10 years of experience running open source hardwar projects and cover many fields including engineering, design, manufacture, supply chain, logistics, sales and tech support. As this Longan Labs can provide an one-stop product developing service, from electronic circuits, software coding, PCB layout and assembly, to industrial design, structure and molding, brand and graphic design.

Longan is a kind of Chinese fruit we all love it. We started from a small maker project at the summer of 2014 when it is the best time to enjoy longan. And we found the company to offer more products and better service at the spring of 2018. The initial idea of Longan Labs comes form maker culture and open source hardware, the corporate vision is helping global makers and open source society.

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