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Old 02-23-2014, 03:31 PM   #1
z1kdav
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Join Date: Jan 2014
Smile WRX stock radio gauges

Hi guys, just want to show you the little project I started this weekend. I want to use the stock radio to display usefull things like boost, a/f, etc.. So I bought a second radio from a member here and then started by reverse engineering the communication. I then begin to write a driver for the LCD, it currently run on a PIC24H. I still got lots of things to do to get this perfect but I can currently write text on the LCD. Next is to get the data on CAN bus and display it.

Here's how it looks (sorry for the pictures quality) :


Test :




Stay tuned !!

David
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Old 02-23-2014, 03:53 PM   #2
aod12
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This is actually awesome.

If you can change the function of the SAT button to bring you to the car info and have the station presents determine what info you're looking at.

Bonus brownie points for aftermarket sender support.
I'm glad to see smart people in general for once.
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Old 02-23-2014, 04:14 PM   #3
pux888
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Nice work man, its cool to see a bit of innovation these days rather then the boring following that has occurred year after year.
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Old 02-23-2014, 05:48 PM   #4
jbloot18
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Nice! Great to see my old stocker put to good use haha.
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Old 02-24-2014, 02:07 PM   #5
super_subie
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sweet!
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Old 03-21-2014, 04:18 PM   #6
TrickNipple
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Have any updates? This is a pretty cool project.
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Old 03-21-2014, 07:55 PM   #7
James2.5i
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Wow, that is pretty cool...

Way to think outside the box.
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Old 03-23-2014, 10:06 AM   #8
D-Impreza
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Great work looks very promising
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Old 03-23-2014, 10:16 AM   #9
cesarg
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Have you thought of a protoboard to use? Since most gauges have an analog output, you could just use the adc's in an arduino or a beagle to receive, convert and output the values. Are you planning on using ECU data or just aftermarket gauges?
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Old 03-26-2014, 01:07 PM   #10
D-rock240
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I like the direction this thread is going

Subbing for updates
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Old 03-30-2014, 10:08 AM   #11
z1kdav
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Hi all, been busy the past weeks but will work on this thing in the next days.

Quote:
Have you thought of a protoboard to use? Since most gauges have an analog output, you could just use the adc's in an arduino or a beagle to receive, convert and output the values. Are you planning on using ECU data or just aftermarket gauges?
I want to make a circuit board once I got it all working. My goal is to have this little board in the radio itself. I want to use the ECU data, CAN bus is available on the radio connector so I will use this to send OBD-2 request.

I will keep you updated!
Thanks,

David
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Old 03-31-2014, 06:20 PM   #12
B-Ross
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Awesome work!
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Old 03-31-2014, 06:21 PM   #13
joebreeves
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Good... lord. Every day I get reminded how resourceful people can be. Well done.
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Old 04-03-2014, 10:20 AM   #14
mwichtendahl
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Thats freaking cool!
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Old 04-03-2014, 12:48 PM   #15
rosedaleny806
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woahhh
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Old 04-04-2014, 01:01 PM   #16
5.0Trunk
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Damn..... So Awesome......
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Old 04-05-2014, 12:34 AM   #17
z1kdav
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Hi guys, little update, I decided to change the microcontroller I used so had to port my code (PIC -> STM32). I then made the serial communication and tested it with my computer (see the beautiful NEC keyboard lol..). I too tested the serial communication with the OBD2 module and it works so basically now I just need the interface my ELM327 with my PIC and I will be able to make the circuit board after.

Here is a little test :

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Old 04-05-2014, 01:05 AM   #18
Omie
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I will pay you money for this if you are willing to do it for other people
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Old 04-18-2014, 11:43 PM   #19
z1kdav
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Hi guys, worked on this today and did the first road test. The code for the obd2 comm is working so I can basically show any data that I want. I did not round the results that's why you see the RPM oscillate in the video but I will fix this. Will start working on a PCB when i'll have free time.
Here's the video :


David
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Old 04-19-2014, 04:39 PM   #20
z1kdav
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Another quick test with the rpm rounded and speed added.

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Old 04-19-2014, 05:27 PM   #21
aod12
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That's awesome. Now all you gotta do is find a way to hide everything and make it look clean
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Old 04-19-2014, 07:58 PM   #22
z1kdav
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I putted everything in the glove compartment so I can still continue the development but it's a little more discrete . But the goal is still to make a circuit board integrated in the radio.

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Old 04-19-2014, 08:00 PM   #23
TrickNipple
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Old 04-19-2014, 09:53 PM   #24
JSchell1309
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Extremely impressive, keep up the awesome work!
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Old 05-19-2014, 10:54 PM   #25
Omie
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i still want to buy one if you ever decide to sell them
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