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ELM327 & HC-05

The aim of this project was to read data from any car`s CAN bus using OBDII, and display it on LCD with possibly low delay.

Table of contents

General info

Older cars that support OBDII standard have a lot of data about current car condition which aren't shown to us, but we can read them all and display the ones that interest us.

Screenshots

LCD1

Technologies

C, Arduino IDE, Bluetooth, CAN.

Code Examples

Code

Features

Display:

  • Coolant Temperature,
  • Battery Voltage,
  • Input Air Temperature,
  • Engine RPM,
  • Car Speed,
  • Engine Load,
  • Fuel Tank Level,

To-do list

Reduce the size, maybe I`ll transfer the design to STM.

Status

The main aim of this project was reached, maybe I`ll back to transfer it on one PCB with STM32.

Contact

Created by https://www.linkedin.com/in/kamil-gradowski-8706991aa - feel free to contact me! grados73