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 Post subject: Arduino CAN Colour Dash Display
PostPosted: Tue Nov 14, 2017 7:13 am 
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Joined: Tue Sep 13, 2016 9:06 am
Posts: 62
ECU Model: S80 Pro
I like to dabble a little with hobby electronics, and have long wanted to create something like this. Mainly because my pockets aren't deep enough to stump for a DTA, Haltech, Aim, Motec type display. Twin that with a bit of a can-do attitude, I have a working prototype..


https://www.youtube.com/watch?v=4a588rSO7Uc

Initial tests look good with my cheapy proof of concept display. I have a "super bright" (820 cd/m2, 500:1) 5" display which I'm hoping to start work with in the near future.

I've just ordered a selection of potentiometers, and also an Arduino Uno to attempt to simulate a running vehicle. The Uno will allow me to emulate Cam and Crank sensors, or rather should do.

From there it'll be time to get it installed into my car (including ECU, so that might cause a slight holdup in development).

I've faced one problem so far and that was with a cheap eBay CAN Transceiver, a slightly more expensive one arrived yesterday and it immediately fixed my problems.


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Tue Nov 14, 2017 4:16 pm 
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Joined: Tue Aug 02, 2011 12:08 pm
Posts: 2883
Location: Norn Iron
ECU Model: No ECU
Cool stuff


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Wed Nov 15, 2017 5:58 pm 
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Joined: Tue Sep 13, 2016 9:06 am
Posts: 62
ECU Model: S80 Pro
Some pots arrived in the post today, nice and simple to setup and the display reacted as you would expect to the change in values.

I also have an Arduino UNO on my desk that I'm going to try and get some cam and crank signals into the ECU from this software..

https://gitlab.com/libreems-suite/ardu-stim


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Wed Nov 15, 2017 8:31 pm 
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Joined: Tue Sep 13, 2016 9:06 am
Posts: 62
ECU Model: S80 Pro
Decent amount of progress this evening, managed to get a dummy crank signal into the ECU resulting in a working rev counter and shift light.


https://www.youtube.com/watch?v=VMfHWnx3MTY

Ardu-stim took a bit of faffing around to get working, but was pretty straight forward really. The front end software that's suggested to use it with is old and very buggy, but I got there in the end.

I think I've now proved this is a goer, and will look to migrate to the brighter, faster display.


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Sun Nov 19, 2017 2:24 pm 
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Joined: Mon Mar 20, 2017 2:41 pm
Posts: 40
ECU Model: S80 Pro
Nice work.


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Sun Nov 19, 2017 7:26 pm 
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Joined: Tue Sep 13, 2016 9:06 am
Posts: 62
ECU Model: S80 Pro
Thanks!

A little update following work carried out this weekend.


https://www.youtube.com/watch?v=xLNG4pTU8GY

A bit weebly wobbly, my production value has some room for improvement! It's a step into the unknown using YouTube for this stuff, but it's the direction the internet is going.

Need to get the RPM proved as working, then start wiring the ECU into the car!

Cheers


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Mon Nov 20, 2017 12:28 pm 
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Joined: Mon May 11, 2015 5:37 pm
Posts: 14
ECU Model: No ECU
Brilliant progress. For info, we've been using a racetechnology Pro4 dash and it takes quite a few seconds after boot-up to show the CAN data - your's appears a bit quicker.


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Mon Nov 20, 2017 2:12 pm 
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Joined: Fri Dec 04, 2009 1:45 am
Posts: 588
Location: Pennsylvania, USA
ECU Model: S80 Pro
Distributor: DTA UK
Firmware Version: 73
Awesome! Do you plan on sharing the components involved for others to trial?

_________________
1992 700RWHP Pump Gas BMW


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Tue Nov 21, 2017 10:26 am 
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Joined: Tue Sep 13, 2016 9:06 am
Posts: 62
ECU Model: S80 Pro
The components list so far comprises of:

1 x 4D Systems 5" Display (Super Bright) "gen4-uLCD-50D-SB"
1 x Teensy 3.2 Development Board
1 x Waveshare SN65HVD230
1 x Pololu 5V, 1A Step-Down Voltage Regulator

I can share an Arduino sketch to get people started, but wouldn't be keen to head down the path of supporting the use of it, if that makes sense? Not at this early stage anyway. I could quickly find myself spending more time helping others, than implementing new features for me to use. That sounds super selfish, but this early on in the project, I've got to be, sorry.

Assuming it actually works in the harsh environment of a car, then there could be some scope for a small production run, but that's pie in the sky right now, lot's of hurdles to over come before getting there.

Image

It'll be going in my Toyota Starlet GT first, which I am desperate to use in the Toyota Sprint Series next year, it'll be a nice test bed, for sure.


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 Post subject: Re: Arduino CAN Colour Dash Display
PostPosted: Fri Dec 01, 2017 2:51 am 
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Joined: Tue Sep 20, 2016 4:47 am
Posts: 23
Location: Ardeche, France
ECU Model: S60 Pro
Distributor: xap
Firmware Version: 61
Hi Tim yes I would be interested by your sketch.
I have made a dashboard for another ECU with a weighing indicator of my company.
but it is only black and White so it would be nice to have a look at your sketch to see how you drive those inteligent displays.
thanks


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