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Light Dependent Resistor

Light Dependent Resistor

AX22-0005

This AX22-sized module houses a light-dependent resistor with a dark resistance of 100 kΩ – 200 kΩ on a 22 × 22 mm PCB, yielding an analog voltage that smoothly follows ambient brightness and is effortless for any microcontroller’s ADC to read. It slots straight into AX22 systems with no special wiring, enabling automatic daylight detection, adaptive backlight dimming, or simple light-triggered events in minutes. Ideal for smart lamps, environmental loggers, or interactive installations where responsive, light-aware behavior is essential.
$3.39
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Technical Details

- 22 mm × 22 mm square
- 4× ⌀2.7 mm Mounting Holes
- 100kΩ to 200kΩ
- 1.8 V, 3.3 V, 5.0 V
- Arduino IDE Compatible
- MicroPython Compatible
- MicroBlocks Compatible

Material Datasheet →

Pinout

Technical Resources

Light Dependent Resistor - (AX22-0005)
Circuit Schematic 3D Model

PCB FRONT

PCB BACK

🖱️ Click & drag to rotate

Arduino Example Snippet 

#define LDR_PIN 1

void setup() {
  Serial.begin(9600);
}

void loop() {
  int ldrValue = analogRead(LDR_PIN);

  Serial.print("LDR Value: ");
  Serial.println(ldrValue);

  delay(10);
}