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Search: Posts Made By: Cehbra
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Forum: Interior
10-12-2021, 04:19 AM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

made it myself
https://www.thirdgen.org/forums/car-audio/742576-discussion-texture-improvement-3d.html
Forum: Interior
01-15-2020, 01:51 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

Just the Arduino IDE https://www.arduino.cc/en/Main/Software
Forum: Interior
01-12-2020, 02:32 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

I guess so, but you'd have to use a plain screen with video input that you connect to a camera. A different 3D mounting bracket would be necessary. The Nextion I use is just used to control an...
Forum: Interior
09-11-2019, 07:00 AM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

Nice! Thank you for the pictures! Gets me Flashbacks LOL
Forum: Interior
09-10-2019, 12:54 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

All good! Happy it worked out in the end.
Looks awesome. Did you use LEDs?

Any pics of the process?
Forum: Electronics
09-07-2019, 03:51 PM
Replies: 7
Views: 2,059
Posted By Cehbra

Re: Another Digital Dash Conversion

Very nice and well done! :thumbsup:
Good to see that the digital dash still gets attention!
Forum: Interior
08-28-2019, 01:28 AM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

I just patched that together in Photoshop. Planning on using dedicated graphics instead of the Nextion fonts though.
Forum: Interior
08-27-2019, 02:00 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

Small world indeed! Used to live near Basel, too, but moved away not long ago
Forum: Interior
08-27-2019, 01:58 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

You're right about the 3D printer, I got a used Form 2 from a dentist for a real bargain. I'll remove the logo though so that Camaro owners could use the bezel, too.
Forum: Interior
08-27-2019, 01:57 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

Cool idea! I think I'll do some OBD stuff when I'm finished with this one. I'm thinking about using the ashtray for that purpose as I'm a non-smoker lol
Forum: Interior
08-27-2019, 01:53 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

Thanks, likewise, love your threads!
Forum: Interior
08-27-2019, 01:52 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

Those tire monitors are a good idea actually, I'll do some thinking about that. The thing I like about the Arduino is that it's instant on and it doesn't need to start up like a raspberry pi.
Forum: Interior
08-26-2019, 01:05 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

It looks nice in the car except for the viewing angle of the display which is moderately good...

I plan on wiring the Arduino to always hot to keep the GPS online and the display to hot in run...
Forum: Interior
08-26-2019, 01:01 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

Here is a temporary setup with the frame and display mounted to get the idea across. I believe it will look much different in the future.
...
Forum: Interior
08-26-2019, 12:57 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

I'm still in the design process for the display frame. I got to the point of a more or less satisfying first version. It still needs flanges for mounting purposes and a bulge to make it fit in...
Forum: Interior
08-26-2019, 12:56 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

Luckily I have a spare t-top console to work with. First I cut off those plastic welding spots to remove the inner strut section. This will go back afterwards to keep the stiffness and the mounting...
Forum: Interior
08-26-2019, 12:55 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

I'm going to do this with an Arduino board and a Nextion 3.2" NX4024T032 HMI display.

I have a spare GPS sensor laying around which should help me with date and time calibration as well as the...
Forum: Interior
08-26-2019, 12:53 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Re: Project: Overhead console with microcontroller and touch controls

So I've been thinking about a replacement for some time now. With a 3D printer at hand and modern easy to handle microcontrollers available for a reasonable price we should be able to get a decent...
Forum: Interior
08-26-2019, 12:51 PM
Replies: 37
Views: 5,776
Posted By Cehbra

Project: Overhead console with microcontroller and touch controls

The fact that - in our cars - we don't have such simple things like a watch or a temperature indicator has been bugging me a bit lately.

On the other hand there's that steam punk event wheel on...
Forum: Interior
08-24-2019, 03:33 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

Not to worry! Can you post a list of your wire connections?
Forum: Interior
08-23-2019, 12:12 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

Long story short: The transistor has three wires:
- Base: pin B, black/red wire
- Collector: pin D, brown wire
- Emitter: pin C, dark green, and gray down the line

All you have to do is cut the...
Forum: Interior
08-23-2019, 12:09 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

No problem! Basically a transistor works like a pipe connecting a source of water to a drain with a controllable valve across a section of the pipe. By controlling whether the valve (in a transistor...
Forum: Interior
08-21-2019, 04:24 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

Hope that resolves some of your questions.

Let us see what you've done so far!
Forum: Interior
08-21-2019, 04:22 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

Side note: the difference between 1988 and 1991 or better: between digital and analog dash is mainly, that in the analog dash you'll get current to the dimmer only when the exterior lights are...
Forum: Interior
08-21-2019, 04:18 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

The gray wire from the emitter of the transistor will go to C2 pin 19 (interior lights dimming), this is the reduced voltage from the dimming wheel. Not surprisingly it also goes to pin E on the DIC...
Forum: Interior
08-21-2019, 04:13 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

As you can see, in 1988 the digital dash is mounted in between the potentiometer and the base of the transistor (GM 10029920, transistor is a Motorola 1986902-1 model). Thus you will have to cut that...
Forum: Interior
08-21-2019, 04:01 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

All right, here are some more things on the interior lights dimming with the digital dash. For the dimming of the interior lights Pontiac used a large transistor with a heat sink, you will find this...
Forum: Interior
08-20-2019, 04:26 PM
Replies: 239
Views: 45,155
Posted By Cehbra

Re: GTA digital dash swap - doing it the hard way - pic heavy

Cool to see that there are more people interested in the digital dash!

Here are some answers from what I recall:

The "lights on input" is used to dim the dash illumination when it's dark...
Forum: Fabrication
08-11-2019, 02:47 PM
Replies: 99
Views: 23,937
Posted By Cehbra

Re: 3D printed parts

And finally with a layer of clear coat it looks promising:

https://i1375.photobucket.com/albums/ag459/cehbrabra/misc/performancesound_003_zpshzvtv16x.jpg...
Forum: Fabrication
08-11-2019, 02:46 PM
Replies: 99
Views: 23,937
Posted By Cehbra

Re: 3D printed parts

Took me a while to figure out how to get the performance sound badge right. I think you're right, it won't work well on an FDM printer. I first had one printed in clear high detail plastic, which...
Forum: Fabrication
07-02-2019, 01:04 AM
Replies: 99
Views: 23,937
Posted By Cehbra

Re: 3D printed parts

As you're familiar with Autocad you might want to take a look at Autodesk Fusion 360 which has a free non-commercial license

www.autodesk.com/products/fusion-360

There are many tutorials on...
Forum: Fabrication
07-01-2019, 10:43 AM
Replies: 99
Views: 23,937
Posted By Cehbra

Re: 3D printed parts

I scanned the badge with a high resolution and mounted it as a canvas and then traced it with splines
Forum: Cooling
07-01-2019, 07:43 AM
Replies: 4
Views: 3,775
Posted By Cehbra

Re: Can you buy new plastic nuts for a non-A/C heater box?

I would suggest making a 3D model and print it in some sturdy plastic would be the #1 way to go
Forum: Fabrication
06-30-2019, 10:41 AM
Replies: 99
Views: 23,937
Posted By Cehbra

Re: 3D printed parts

I actually updated that Performance Sound badge some days ago, it's here: https://www.thingiverse.com/thing:3702904

I'm in the process of printing it in fine detail plastic and paint it, I'll let...
Forum: Electronics
06-30-2019, 10:19 AM
Replies: 3
Views: 1,474
Posted By Cehbra

Re: Need to trigger above certain speed

Thanks guys! Your ideas are a good starting point.
Forum: Electronics
06-29-2019, 06:09 AM
Replies: 3
Views: 1,474
Posted By Cehbra

Need to trigger above certain speed

I'm doing a little project where I need to activate a relay above a certain speed (when going more than 20 mph or so). Any ideas on how to do that? Wasn't there a company that sold modules like that?...
Forum: Interior
06-29-2019, 01:13 AM
Replies: 19
Views: 4,812
Posted By Cehbra

Re: 1987 digital dash need help

If you want me to reprogram the chip you can send it to me, I also have a few spare ones left, shoot me a pm.
Forum: Interior
06-19-2019, 04:04 PM
Replies: 19
Views: 4,812
Posted By Cehbra

Re: 1987 digital dash need help

The Hypertech chip is for the ECM and holds tuning data that controls the engine’s air/fuel ratio and spark advance and stuff. The EEPROM behind the odometer only contains an encrypted mileage data.
Forum: Interior
06-19-2019, 04:00 PM
Replies: 19
Views: 4,812
Posted By Cehbra

Re: 1987 digital dash need help

I'm talking about the EEPROM that holds the mileage, see here: https://www.thirdgen.org/forums/electronics/732858-hacking-into-86-88-a.html

It's the integrated circuit under that cage on the...
Forum: Interior
06-17-2019, 12:48 PM
Replies: 19
Views: 4,812
Posted By Cehbra

Re: 1987 digital dash need help

Is it flashing 9999999.9 ? If that's the case your eprom is toast and you'll need to replace it.
Forum: History / Originality
05-12-2019, 04:16 PM
Replies: 111
Views: 34,769
Posted By Cehbra

Re: Tech Article: Trans Am factory cowl induction (LG4 / L69) in 4 parts

The number is GM 10028254, see post 22

or see here: 001
https://nemigaparts.com/cat_spares/epc/pontiac/22f-f/03/2f03-004/
Forum: Members Firebirds
04-14-2019, 03:29 PM
Replies: 144
Views: 24,579
Posted By Cehbra

Re: Reliving good old memories - 82 T/A and 91 Firebird (pic heavy)

Actually at first I didn't notice anything. Only when I had to shut down the system for a few days I noticed how sluggish the car got. I think there is a difference - not much but noticeable.
...
Forum: Members Firebirds
04-14-2019, 03:24 PM
Replies: 144
Views: 24,579
Posted By Cehbra

Re: Reliving good old memories - 82 T/A and 91 Firebird (pic heavy)

Thanks guys!

Buddy, the rims were 3750 US$ plus shipping plus tires. So far that was the biggest investment I ever made on the car
Forum: Members Firebirds
04-13-2019, 10:23 AM
Replies: 144
Views: 24,579
Posted By Cehbra

Re: Reliving good old memories - 82 T/A and 91 Firebird (pic heavy)

That dust cap is protruding a bit on the front wheels so I can't mount the new caps. I think I'll need some spacers - that should hopefully solve the problem.
...
Forum: Members Firebirds
04-13-2019, 10:23 AM
Replies: 144
Views: 24,579
Posted By Cehbra

Re: Reliving good old memories - 82 T/A and 91 Firebird (pic heavy)

They are 18x8 with Nexen 245-40-18 up front and 18x10 with Nexen 275-35-18 rear.

https://oi1375.photobucket.com/albums/ag459/cehbrabra/Main/025_zpsrj0wqouu.jpg...
Forum: Members Firebirds
04-13-2019, 10:22 AM
Replies: 144
Views: 24,579
Posted By Cehbra

Re: Reliving good old memories - 82 T/A and 91 Firebird (pic heavy)

It's been more than five years since I got the car - time for some new rims! I got Boze Forged 18" Pro Touring wheels with a medium lip and smoked center. I think it's totally worth it as it gives...
Forum: Members Firebirds
04-07-2019, 08:36 AM
Replies: 144
Views: 24,579
Posted By Cehbra

Re: Reliving good old memories - 82 T/A and 91 Firebird (pic heavy)

Mounting was easy, I just fixed the copper wire to the A pillar with some zip ties and routed the cable to the receiver within the dash. I now have a range of 70 feet - much better than the 3 feet I...
Forum: Members Firebirds
04-07-2019, 08:33 AM
Replies: 144
Views: 24,579
Posted By Cehbra

Re: Reliving good old memories - 82 T/A and 91 Firebird (pic heavy)

https://oi1375.photobucket.com/albums/ag459/cehbrabra/keyless/keyless_012_zpsngpjaqan.jpg (http://s1375.photobucket.com/user/cehbrabra/media/keyless/keyless_012_zpsngpjaqan.jpg.html)
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