Looking to create your own Christmas LED display?
The ELM711 Christmas LEDs driver may be just what you need. The 8-pin PDIP is only $8.50 and it saves you a lot of work. For more information, see our fun stuff/Light page.
It's here! The ELM329 CAN Interpreter
The new ELM329 is now available! There has been a lot of interest in an OBDII chip that supports only CAN protocols, so here it is. We've taken the best from our ELM327, added to it, and produced the ELM329. There are three new protocols pre-defined for you, a number of new functions, and the ability to use the chip in existing ELM327 circuits. Here's just a few of the features:On top of those, we've managed to get the interface working a little faster, maintained software compatibility with the ELM327, and maintained pin compatibility with the ELM327. The price remains reasonable too - $21.00 each in single quantities.
- CAN periodic (wakeup) messages
- Three more user controllable protocols
- Single wire CAN transceiver controls
- The ability to send arbitrary CAN messages at any time
- Some general purpose inputs and an output
For a copy of the data sheet, click here (links to our OBD IC page)
The Rotary Decoders are Here!
There's been a fair bit of interest in converting signals from quadrature encoders, so we've added 8 new ICs to the lineup. These provide several processing options, from simply debouncing, to conversion to two or three wire serial signals with 2x or 4x decoding. Sorry, no SPI at this time.Here's the new lineup. For more information, visit the 'electronics bench' section, or click on the individual chip:
- ELM401 Rotary Encoder Debounce Circuit
- ELM402 Rotary Decoder - 2 wire 2x Interface
- ELM403 Rotary Decoder - 2 wire 4x Interface
- ELM404 Rotary Decoder - 3 wire 2x Interface
- ELM405 Rotary Decoder - 3 wire 4x Interface
- ELM406 Rotary Decoder - 3 wire 2x Interface
- ELM407 Rotary Decoder - 3 wire 4x Interface
- ELM408 Rotary Decoder - 2 wire Interface
We've updated the Bluetooth Application Note
There have been a few questions on the first version of 'AN04 - ELM327 and Bluetooth' that we've hopefully cleared up in this release. Among the changes is the specific reference to level translator ICs that we had not included before. Download a copy from our Application Notes page.
It's here! The new ELM327 v1.4b...The ELM327 has been updated to v1.4b, to provide a little more support for the SAE J1939 protocol. Some of the additions include:
And for all the CAN protoocls (6 to C), we now have:
- New default timer settings to better handle long J1939 messages.
- JTM1 and JTM5 timer multiplier commands to lengthen the response wait times.
- The ability to specify how many messages to retrieve when monitoring for a PGN.
- JHF0 and JHF1 commands to control the J1939 header formatting.
- The ability to see the entire TP.CM message.
These are almost enough changes to call this update a 'v1.5', but we decided to call it a 'v1.4b' instead. Hopefully, you will find these additions useful if you decide to venture into the world of J1939 data transfer.
- A new CSM command for turning the CAN silent monitoring off and on, allowing for easier bench testing, and connecting to a dedicated CAN port.
- A new CRA command for resetting the filters and masks to their default values.
Please note:
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New Application Note: AN05 - Bench Testing OBD InterfacesThis Application Note provides some tips on testing your OBD Interfaces before connecting them to a vehicle. It's a collection of some of the more common issues that we've been asked about over the years, with an emphasis on testing the CAN protocols. If you are building your own circuits, you will likely find this note to be helpful.Visit our Application Notes page to download this Note.
The ELM415 data sheet has been revised
We've taken some recent comments and used them to better the data sheet for the ELM415 Up/Down Interface IC. There's more information, and (hopefully) some clearer explanations.As always, if you want to provide feedback to us on any of our products or their data sheets, please send an email to feedback@elmelectronics.com.
The ELM328 has been updated!
The ELM328 IC has now been updated to support all of the ELM327 v1.4 AT Commands. You still can not send any OBD commands with it, but we have changed the responses when you try (it now acts as if there is no ECU connected).Note - This IC is only for developers that need to try the @2 and @3 commands multiple times with their software. It is not for use in scan tools.
The ELM327 v1.3a is still available!
We are still offering the ELM327 v1.3a IC, but have dropped the price.It is now available for CAD19.00 each, for any quantity!Many people find the v1.3a more than adequate for their needs, so we will carry it as long as there is demand for it. For more information, and the v1.3a data sheet, visit our OBD integrated circuits page.
The new ELM327 v1.4 is now available!
It's here, and available for purchase. The ELM327 has been improved once again, with more error checking, code improvements, and of course, new features. Here are a few of the new features:
- Power Control with a low power standby mode
- A 4800 baud ISO option
- A non-volatile memory location for storing user data
- CAN extended addressing support
The price of this new chip remains at CAD32.50 in single quantities, and the data sheet is still a free download. For more information, go to the OBD integrated circuits page.
Yes, you can now follow Elm Electronics on twitter. Twitter is a very convenient way for you to keep up with any changes that we make, without having to visit our site. We'll send tweets when we've done something that might interest you - introduced a new product, updated an old one, changed prices, etc. and you can decide if you want to look into it further. Don't worry, they won't be so frequent as to be a problem.
We'd like to hear it. Just send an email to: feedback@elmelectronics.com
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