Re-Wiring my 1541

[CubDieselFan]

Originally Posted by Terry C

This project sounds cool. I'm not a fan of adrino but I have programmed some PLCs for my CNC machines,for tool changers and misc functions.

I program PLC's for a living. We use GE 90-30's, Rx3i's, Omron, and Mitsubishi.

[Terry C]

Originally Posted by CubDieselFan

I program PLC's for a living. We use GE 90-30's, Rx3i's, Omron, and Mitsubishi.

Cool, now I know who to call when mine quit
I have a couple of Eaton and Koyo. They are for the common man not professionals like you

Sorry for the derailment

[mudpatrol1]

are you going to install a flux capacitor??????? lol

[ol'George]

Ever hear of KISS?
(No, not that stupid group of face painters)
Keep it simple stupid!
Next thing ya know, yall be inventing a Dick Tracy radio/tv watch.

[Frank1541]

I have made a lot of progress on this.

In response to the questions and comments above.
- I am doing this mainly because I can. I needed a project and this seemed like a fun one. Since when did every project we see here make sense.
- I will not go into detail on Arduino, just do a web search.
- Once this is done the actual wiring in the tractor will be much simpler. No more running the starter or PTO wires all over the tractor. Just a sensor and a relay.
- I may add a display at some point. I need to find a weather proof display.
- Telling people that I am waiting for my tractor to boot would be a hoot.
- A Pi is not needed because newer displays store the image data in display memory. All the Arduino has to do is call up the image with a simple command.

Below is a picture of the circuit boards and wiring involved. It looks a lot more complicated then it actually is since I used individual wires. The final version will use flat multi wire cables with the appropriate connectors I wanted to have a way to test the software off the tractor. Hence, all the switches etc. The largest board takes care of the switched inputs and most of the relayed outputs. Also shown is the Arduino controller, 5 volt power supply, main relay and the board that controls the dash lights.

It took a while to match the logic that the current circuit follows. I added a few things like the PTO will not turn on if the engine has not been started and the oil pressure sensor will light one light at first and then all the lights after a few seconds. I am trying to decide if I should kill the engine after a few seconds if the oil pressure sensor is on. This is not currently done on my tractor.

Now I need to put the thing in a waterproof case and decide how to run the wires around the tractor.

[Sam Mac]

Looks way cool but I'm too stupid to even have clue what your doing.

Edit: I would post my wiring diagrams but they are not allowed here because they are simple and could hurt stupid people like our elected officials in DC .

[Terry C]

I like the idea of the oil sensor shutting off the engine.
Do you have debounce for some of the factory switches or
can you replace all of the mechanical switches ? I could see an
old mech switch hitting quite a few times with the vibration from the
engine or whatever

[Frank1541]

Terry,

So far I have not done anything to debounce the switches. Of course I have not tried this on the machine yet. My gut instinct is that I will not need them since there are no times that I need to worry about fast on / off cycling.

John