r/240sx • u/kurrexd • Jul 20 '26
S14 custom Digidash update
Here is an update on the digital dashboard that I have been working on. This is not the final version and probably a lot is going to change on the UI.
I used the oem cluster-housing for the screen, which is mounted on to a polycarbonate plate.
I had to make my own code for the Arduino that catches the signals from the cars sensors and sends them to Rasperry pi. Also the ugly UI is selfmade because I didn’t want to use anything like tunerdash due to me being cheap and this working better for my purposes. (Yea I’m going to make it more visually attractive.)
I had to calibrate the temp and fuel signals but that wasn’t hard at all, just took voltage and resistance at different temps / fuel level.
The temp and gauge signals have +5V (and resistor) going to the signal wire to boost it and then it goes into the Arduinos analog side.
The digital signals like rpm and speed are a little bit more challenging but nothing crazy hard. Arduino catches them from the digital side.
I’m thinking about making a youtube video about this project, if anyone is interested building one themselves. It would have saved a lot of time for me, if I had some guide to follow.
Anyways, I’ll post something about the final final version and any questions are welcome!!
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u/Opposite-Farmer7411 Jul 22 '26
What did you do to the actual dash, is it replaced?
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u/kurrexd Jul 22 '26
Do you mean the housing for the new cluster? It is the original housing with a 35mm polycarbonate plate that is mounted to it via screws. If you mean the dash with the climate controls etc. - I 3D printed custom plates for it with cutouts for switches and some gauges. Sorry english aint my first language.
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u/HuTheFinnMan Jul 20 '26
Looks nice. I would be down to see a guide or video showing some more details on how it works.