ELM327 OBD to RS232 Interpreter Data sheet
●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 actas 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 lC that can automatically sense and convert the most common protocols in use today. There are a number of other improvements as well - a high speed RS232 option, battery voltage monitoring, and customizable 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 lC to 'talk’to your vehicle, then concludes with two schematics to get you started.
■Features
●Supports 12 protocols
●RS232 baud rates to 500Kbps
●Automatically searches for protocols
●Fully configurable with AT commands
●Voltage input for battery monitoring
●Low power CMOS design
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[ Diagnostic trouble code readers ][ Automotive scan tools ][ Teaching aids ] |
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Datasheet |
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Please see the document for details |
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PDIP;SOIC |
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English Chinese Chinese and English Japanese |
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2008/11/26 |
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Rev. F |
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261 KB |
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