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ELM327DSF - OBD to RS232 Interpreter

General Description

Almost all new automobiles produced today are required, by law, to provide an interface from which test equipment can obtain diagnostic information.

The data transfer on these interfaces follow several standards, none of which are directly compatible with PCs or PDAs.

Key Features

  • through programmable parameters, to name only a few. The ELM327 requires few external components to make a fully functioning circuit. The following pages discuss the interface details, and show how to use the IC to ‘talk’ to your vehicle, then concludes with two schematics to get you started.

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Datasheet Details

Part number ELM327DSF
Manufacturer ELM
File Size 257.54 KB
Description OBD to RS232 Interpreter
Datasheet download datasheet ELM327DSF Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ELM327 OBD to RS232 Interpreter Description Almost all new automobiles produced today are required, by law, to provide an interface from which test equipment can obtain diagnostic information. The data transfer on these interfaces follow several standards, none of which are directly compatible with PCs or PDAs. The ELM327 is designed to act as a bridge between these On-Board Diagnostics (OBD) ports and a standard RS232 interface. The ELM327 builds on improved versions of our proven ELM320, ELM322, and ELM323 interfaces by adding seven CAN protocols to them. The result is an IC that can automatically sense and convert the most common protocols in use today.