ELM327 Datasheet – OBD to RS232 Interpreter – ELM

Part Number : ELM327

Function : OBD to RS232 Interpreter

Manufacturers : Elm Electronics

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elm327-microcontroller

 

ELM327
Pinouts

ELM327 pinout

Features

1. Power Control with standy mode
2. Universal serial (RS232) interface
3. Automatically searches for protocols
4. Fully configurable with AT commands
5. Low power CMOS design

obd-ii-connector-and-pinout

Description

Almost all of the automobiles produced today are required, by law, to provide an interface for the connection of diagnostic test equipment. The data transfer on these interfaces follow several standards, but none of them are directly usable by PCs or smart devices. The ELM327 is designed to act as a bridge between these On-Board Diagnostics (OBD) ports and a standard RS232 serial interface.

The Device is a programmed microcontroller produced by ELM Electronics for translating the on-board diagnostics (OBD) interface found in most modern cars. The Device command protocol is one of the most popular PC-to-OBD interface standards and is also implemented by other vendors.

The original ELM327 is implemented on the PIC18F2480 microcontroller from Microchip Technology.

Almost all of the automobiles produced today are required, by law, to provide an interface for the connection of diagnostic test equipment.

 

ELM327DSJ Block Diagarm

 

Official Homepage : https://www.elmelectronics.com/ic/elm327/

 

ELM327 Datasheet

ELM327 pdf

Other data sheets within the file : ELM327DS, ELM327P, ELM327SM