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Keyboard Key with an Addressable LED

Keyboard Key with an Addressable LED

SKU:AX22-0027

Click it, see it. This AX22-sized board seats a mechanical switch and tucks a tiny  “NeoPixel” LED beneath it, giving you crisp tactile input and full-colour feedback from the same 22 × 22 mm square. Comes with a built-in debounce circuit the switch and an active-low GPIO read. Drop it into any AX22 backplane to add per-key lighting, mode indicators, or game-style bling with a single digital pin and a handful of library calls in Arduino, MicroPython, or MicroBlocks.
$7.49
$7.49
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Technical details

  • 22 mm × 22 mm square
  • 4× ⌀2.7 mm Mounting Holes
  • Compatible with most MX & Kailh key cap styles
  • 24-bit colour, 800 kHz single-wire protocol
  • Switch pullup and debounce
  • 3.3 V, 5.0 V
  • Arduino IDE Compatible
  • MicroPython Compatible
  • MicroBlocks Compatible
Component datasheet

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Pinout & connections

Pinout & connections

Technical Resources

Keyboard Key with an Addressable LED - (AX22-0027)
Circuit Schematic 3D Model
PCB FRONT
Keyboard Key with an Addressable LED — PCB FRONT
PCB BACK
Keyboard Key with an Addressable LED — PCB BACK

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Arduino example

ax22-0027.ino 
#include <Adafruit_NeoPixel.h>

#define BUTTON_PIN 1
#define NEOPIXEL_PIN 14

#define NUM_PIXELS 1   // assuming only one NeoPixel

Adafruit_NeoPixel strip(NUM_PIXELS, NEOPIXEL_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  strip.begin();
  strip.show(); 
}

void loop() {
  int buttonState = digitalRead(BUTTON_PIN);

  if (buttonState == LOW) {
    strip.setPixelColor(0, strip.Color(255, 0, 0)); // Red
    strip.show();
  } else {
    strip.setPixelColor(0, strip.Color(0, 0, 0)); // Off
    strip.show();
  }
}