I see some past posts on here but I don't think they went anywhere. What I am looking for and am surprised doesn't exist yet is a shield that has 12V inputs and outputs and can send 0-5V signals to drive gauges. Maybe a CAN Bus connection as well.
Any idea if this exists or if anyone is interested in developing this with me?
Nice idea but make and model year are we talking about? what about the 3V3 processors. The gauges in my car are driven by the cluster processor. CAN connecting to what? Connecting to the wrong bus or sending a wrong message can damage the vehicle. Here is some reading for you that will help explain why this has not been done commercially.
There is many good app notes such as AN2689 by ST on automotive electronics. reading it will help you a lot.
https://www.st.com/resource/en/application_note/cd00181783-protection-of-automotive-electronics-from-electrical-hazards-guidelines-for-design-and-component-selection-stmicroelectronics.pdf
Also take a look at these: https://www.analog.com/en/technical-articles/distilled-automotive-electronics-design.html and
Transient Voltage Suppression in Automotive Applications
AEC-100 https://media.monolithicpower.com/mps_cms_document/w/e/Webinar_-_Fundamentals_of_AEC-
I dont know a developer, but maybe this link will help youhttps://www.rugged-circuits.com/microcontroller-boards/rugged-mega
Your link clearly states: Ready for Industrial environments with built-in DIN Rail Mounting, that is not as harsh as the automotive environment.
Inputs go to 12V but cars run at 14.4V so this wouldn't work.
No specific model or year. Probably aimed at hotrods and older cars wanting newer technology. Aftermarket gauges are usually driven by 0-5v and some digital dashes can take 0-5V as well. Can could take some values off of the bus and output them onto gauges like specific temps or pressures.
I appreciate the heads up on the EMI but that is another issue this shield could solve.
Let us know how you do.
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