Need help with simple project wiring 5 pin LED latching switches together for instrument cluster bench tester

Thread Starter

ChristianCo

Joined Jun 25, 2023
3
Basically I’m trying to build a simple car instrument cluster bench tester/simulator that I can use from home. It consists of

  • three 5 pin Halo LED switches.
    (Tester on/off, Backlight, Turn signals)
  • a small voltmeter gauge
  • 12v power supply.
  • Automotive pigtail connector.
The switch on the left will be for the main on/off power to the entire assembly, middle for the backlight, and right for turn signals. I really need help daisy chaining the latching switches together with the volt gauge and the power supply and then into the pigtail connector wires. I have the pinouts for the pigtail connector in the drawing.
I really appreciate any help at all, thank you.
 

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AnalogKid

Joined Aug 1, 2013
10,778
Your questions needs work. What is it you are trying to achieve? For example, are the two switches only function to connect to the voltmeter input? If so, then how do you assure that only one switch is on at a time?

Not counting the power switch, describe in detail what you want to have happen when each of the other two switches is pressed. Consider the action of the light, voltmeter, and whatever else as separate functions. A function table will help to organize the actions.

ak
 

Thread Starter

ChristianCo

Joined Jun 25, 2023
3
Your questions needs work. What is it you are trying to achieve? For example, are the two switches only function to connect to the voltmeter input? If so, then how do you assure that only one switch is on at a time?

Not counting the power switch, describe in detail what you want to have happen when each of the other two switches is pressed. Consider the action of the light, voltmeter, and whatever else as separate functions. A function table will help to organize the actions.

ak
So I am starting a business to repair Instrument clusters/speedometers. I need a way to simulate power to them from my desk without them being connected to the vehicle.

the main power switch will power up the volt gauge and the speedometer and will connect to the other two switches but wont automatically activate them.

The middle switch when pressed will turn on its led light and activate the backlight of the speedometer.

the right switch when pressed will turn on its led light and activate the turn signals on the speedometer.

These lines will be connected to the lines of a pigtail connector that plugs into the speedometer. I have the lines/pinouts for the connector identified in my pictures. I will post more picture so that it makes sense. I was copying a Youtube video but he used standard two pin switches with led bulbs, not 5 pins.

So really the device I’m powering is the speedometer and two of its functions independently, its backlight and its turn signals. The volt gauge is just there as a precaution.
 

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