Digital Dash Project based on STM32 MCU and TOUCHGFX

[opelpanfan]

Hi everyone

After some discussions with rusefi team, I'm making this post about my digital dashboard project.

From the beginning:

Aftermarket Digital Dashboards are very expensive and in general limited to high-end manufacturers. In the past, I used AIM MXS STRADA 5-inch dash and ECU master ADU 5-inch units. Found them pretty good but very expensive for the hardware used inside. About 2 years ago started tinkling about with STM32F469NI 4.3inch Evaluation board with Touch GFX interface and found it pretty powerful and easy to use.

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After finding that the evaluation board has only CAN 2 available and did not really like to transmit CAN frames started designing my own PCB.
After many unsuccessful trials found a couple of displays on Aliexpress that worked with my PCB design.

The current project status is that I have 3 working prototypes with different screen sizes.

PART 1

1. This 6.86inch with a 480x1280 high-resolution IPS screen and Parallel RGB interface

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You can get one here for about 50$:

https://www.aliexpress.com/item/1005004740847099.html?spm=a2g0o.cart.0.0.2a2438dapnRlM9&mp=1
Spec sheets:

SRG0686A.pdf

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Screen dimensions:

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Controller PCB:

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Spec:
STM32f429II
SDRAM W9825G6KH-6I
2 CANBUS
GPS ATGM336H-5N31
ESP32-S3
SDCARD
4 user buttons
W2812 RGB LED connector

PCB plugs into the screen through ribbon cable 40p 24bit RGB interface + I2C Touch interface

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Loaded FW on screen

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PCD Schematic:

SCH_6.86 DASH SCH_2023-02-28.pdf

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GitHub repo for Firmware and Hardware:

https://github.com/opelpanfan/car-dash-wide

[AndreyB]

I'll upload it to GitHub in next couple of days and post details about other two screen sizes and responding PCB's

I am very very interested to touch this stuff! Maybe I can help with fabrication and case

[MoeAlpha]

Amazing ! Would make a 3D printed case for this !!!

[AndreyB]

STM32f429II

Well, here's a funny reality - LQFP-208 is way more accessible and WAY CHEAPER at the moment?! Would be funny if we would have to come up with a combined 176 AND 208 footprint to have options

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[AndreyB]

https://www.google.com/search?q=6.86%22+dash LOL.

[AndreyB]

Now leveraging interactive pinout!

https://opelpanfan.github.io/car-dash-wide/pinout/

[AndreyB]

Trying to help...

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