This is our latest vehicle diagnostics interface chip - this time for heavy duty vehicles that use J1708
with J1587 (or J1922). Although these protocols are being phased out (they're being replaced by
J1939), there are still a very large number of vehicles that use them.
The ELM325 is a very capable product, as you would expect. You can monitor
the data bus, selectively filter what you see, send messages, and retrieve replies, as well as
adjust timing, priorities, output formatting, etc. all through a very easy to use ascii interface.
In use, the ELM325 is almost identical to our popular ELM327, ELM329, etc. products. A simple
terminal program will get you going, and because it's ascii-based, custom interfaces are easy to create.
The ELM325 is a 14 pin CMOS integrated circuit that only requires a handful of components to make
a complete interface tool. The output is serial, as that's the most versatile - there are
solutions available for you to connect to USB, RS232, Bluetooth, ethernet, Wi_Fi, etc. Have a look
at our data sheet for a discussion of a couple of these (see the Example Applications section).
ELM325P (14-pin PDIP): $15.50
ELM325SM (14-pin SOIC): $15.50