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LED marker and turn signal w/2 inputs

Discussion in 'LEDs and Optoelectronics' started by Jon Richey, Jan 30, 2017.

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  1. Jon Richey

    Jon Richey

    2
    0
    Jan 30, 2017
    I may be wording it wrong when doing searches but I came up empty handed.
    What I'm trying to accomplish is running a signal 12v led as a marker light that will blink off with turn signal, head lights on.
    Headlights off it will blink on and off.
    My crude schematic is first try at a online program. So not all my symbols are correct.
    schematics-project1.png


    With head lights on RY1 closes opening the circuit for turn signal input and closes RY2 turning on LED. when turn signal is on it removes ground from RY2 blinking the LED. Head lights off RY1 completes the circuit for turn signal blinking the LED on and off. RY2 stays open. I'm sure it needs resistors and other things added. I'm just unsure. Is there a way to do it with transistors instead of having to use 4 relays, 2 for each side.
     
    Last edited: Jan 30, 2017
  2. Jon Richey

    Jon Richey

    2
    0
    Jan 30, 2017
    I searched the internet long enough. I think I found it.

    modified side marker lamp circuit.png
     
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