Well I decided to scrap this project. My Supra is an '82 and I have been unable to get some of the signals I would need like the fuel level. This really sucks because I put a crap ton of time and money into this. If my Supra was newer with an ECU, I could have tapped into that with a custom passthrough plug. I had some cool stuff going with it too. The speedometer (GPS) was working great. I even had it flash the background of the speedometer red when you exceeded 80 MPH. There are some limitations as far as using the Raspberry Pi as a web server. It was overheating because it was constantly looking for new values. It also drained my battery if I kept it running. If I didn't keep it running, it would take a couple of minutes to boot up completely.
Mark II LCD Instrument Cluster
Hello everyone.
I have been working on a custom
LCD Instrument Cluster. It runs on a microcomputer (Raspberry Pi) and a microcontroller that are tucked inside a regular Celica / Supra cluster. I am still waiting on the display to arrive before I can continue any further. It is plug and play. The speedometer will be GPS based (my Supra currently reads the speed incorrectly using the cable) In the event I get this working properly would anyone else be interested in one? Here is what I have for the theme on mine. Of course you would have options as i made this completely theme-capsble. You can choose your gauge needles, your background, splash screen, etc. There will be a way for you to enter your odometer so that you can keep your mileage accurate. I don't have photos yet as it is a work in progress.
Instrument Cluster
I have been working on a custom
LCD Instrument Cluster. It runs on a microcomputer (Raspberry Pi) and a microcontroller that are tucked inside a regular Celica / Supra cluster. I am still waiting on the display to arrive before I can continue any further. It is plug and play. The speedometer will be GPS based (my Supra currently reads the speed incorrectly using the cable) In the event I get this working properly would anyone else be interested in one? Here is what I have for the theme on mine. Of course you would have options as i made this completely theme-capsble. You can choose your gauge needles, your background, splash screen, etc. There will be a way for you to enter your odometer so that you can keep your mileage accurate. I don't have photos yet as it is a work in progress.
Instrument Cluster
41 - 44 of 44 Posts
I could may be help you about the fuel level (not the batt drain!)
if that would convince you to keep your project alive.
But I think you are already capable of reading schematic and tap into various signal you need.
I'm just surprized a simple fuel level variable resistance stops you.
You don't need the level warning switch, and the level itself is a dumm variable R from 3 Ohms (full) to 110 Ohms (empty). That is between Yellow/Red wire of the blue connector, position 3, and a good ground.
if that would convince you to keep your project alive.
But I think you are already capable of reading schematic and tap into various signal you need.
I'm just surprized a simple fuel level variable resistance stops you.
You don't need the level warning switch, and the level itself is a dumm variable R from 3 Ohms (full) to 110 Ohms (empty). That is between Yellow/Red wire of the blue connector, position 3, and a good ground.
The biggest hurdle is the overheating and turning off while you drive down the road. It could be on for 15 minutes on one trip, 30 minutes on another, or just 5. Sadly, it makes it unusable. A 12V microcomputer system would also make things easier. The Raspberry Pi is a 5V system so I had to make a voltage splitter for each connection. I am willing to offer up my source code to anyone that would like to continue the project. I will zip it up and host it on my server.I could may be help you about the fuel level (not the batt drain!)
if that would convince you to keep your project alive.
But I think you are already capable of reading schematic and tap into various signal you need.
I'm just surprized a simple fuel level variable resistance stops you.
You don't need the level warning switch, and the level itself is a dumm variable R from 3 Ohms (full) to 110 Ohms (empty). That is between Yellow/Red wire of the blue connector, position 3, and a good ground.
The source code where I left off. May you have plenty of patience and more Pi knowledge than myself.
Here is a zip of the 3D models I made for the instrument cluster as well.
Here is a zip of the 3D models I made for the instrument cluster as well.
41 - 44 of 44 Posts
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