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Axiometa

Traffic Light

Traffic Light

AX22-0024

$3.49
$3.49
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A PCB that looks like a real traffic light: a tall, narrow silhouette with three 5 mm diffused LEDs stacked vertically. Slide the board into a front panel, stick it on a robot, or mount it on a model-railway street corner then drive each lamp from its own GPIO pin (active-high) just as you would any plain LED.

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  • Technical Details

    - 330 Ω current-limit resistor on each LED
    - 3.3V or 5.0 V
    - Breadboard Compatible
    - Arduino IDE Compatible
    - MicroPython Compatible
    - MicroBlocks Compatible

    Material Datasheet 

  • Pinout

  • Interface

PCB Design

  • Top

  • Bottom

Arduino Example Code

example.ino 
int ledPins[] = {8, 15, 45};
int numLeds = 3;

void setup() {
  for (int i = 0; i < numLeds; i++) {
    pinMode(ledPins[i], OUTPUT);
    digitalWrite(ledPins[i], LOW);
  }
}

void loop() {
  for (int i = 0; i < numLeds; i++) {
    digitalWrite(ledPins[i], HIGH);
    delay(500);
    digitalWrite(ledPins[i], LOW);
    delay(500);
  }
}

Guides and Blogs

  • First time setup

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  • Automatic Street Lights

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  • How Does an LDR work ?

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