sensor-experiments

Introduction

This experiment demonstrates how to use a photodiode to detect flickering light and send alerts when the flicker is detected.

Components Needed

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Circuit Setup

  1. Connect the photodiode to an analog input pin on the Arduino through a resistor to form a simple light detection circuit.

Code for Light Flickering Detection

Upload the following code to your Arduino to detect light flickering:


const int photodiodePin = A0;
int lightLevel;
int threshold = 500;

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

void loop() {
  lightLevel = analogRead(photodiodePin);
  if (lightLevel > threshold) {
    Serial.println("Flickering Detected!");
  } else {
    Serial.println("Normal Light");
  }
  delay(500);
}
            

Explanation

The photodiode detects changes in light intensity. When a flicker is detected, the Arduino alerts the user via the Serial Monitor.

Troubleshooting

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