My Tuned AE86 project

[thanhngo]

Thanks mate, yeah im playing around with bit more now since I like the 86 and trying to build it with stuff I like. I have a few more engine parts for later projects Which i will uncover when I get to it

Ok so to get this cluster running properly on an 86, there are 3 problems.
1. Speedo is electric
2. Temp Guage is pwmish signal (in order to light up the bars according to temp)
3. Fuel Guage reader is different.

There are commercial kits to resolve these problems and would cost around $150-$200. I wanted to do it a little different so here is the plan:

Use the 'speedo' as LCD readout with a toggle switch.
Output
* speedo of course
* water tempature
* oil tempature
* oil pressure

So thats 4 signals IN and 1 signal OUT - to accomplish this I will be using a 'Microcontroller'. (Ok I am NOT an expert...actually I am a newbie since I started this few weeks ago but sharing the experiences/learnings as I go).

So the first step is to make the speedo turn on from 0-300 on command. To get started, I needed a programmer and microchip at the very least.

Here is the programmer I brought: Its a Pickit2 starter kit with a lowpin count prototype board which comes with 16F690 microchip (microcontroller).


With this I write software and burn it to the chip. My first step is to build a signal generator to output 0-300. Got excited and twinkered with some lesson code, I was able to generate: