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Controlling the Instrument Cluster's Display

74931 Views 470 Replies 65 Participants Last post by  Mario

A little project I'm working on. :) (Sorry for the horrid picture!)

Here's the elevator pitch: Directly control the LCD panel with a microcontroller to display custom information on the instrument cluster. The microcontroller will also read the data that would normally be going to the LCD and can choose to display that info or custom info.

Maybe you want to display OBDII parameters where the MPG is. Maybe you want to change the charge, assist, and SOC gauges to accurately reflect amps in/out, real battery SOC, etc.

I've got a few other ideas as well. Once I'm finished with this project I'll open-source everything I've learned and perhaps produce some PCBs to sell. We'll see!

I have work and other projects as well, so it may be slow going at times. But I'll try to give updates fairly regularly.
I don't think this has ever been done before. I hope you guys are excited!
If anybody is or wants to work on something similar, I'll be glad to share what I know; just ask.
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Ive been reading over this thread for a bit now, id love to support this and purchase one whenever youre finished. My main goal is to be able to use the IMA gauges for something like an AFR. After reading through this post ive seen that youve taken it many steps further and are actually driving the digital display. lol. If you could somehow integrate a wideband o2 sensor input into the final result that would be really sick! Im not too good with the technical but i am proficient in basic wiring and advanced engine modification, i am after all swapping a K24/K20 frank with a s2k trans into a miata!
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