Introduction

This experiment uses a UV sensor to measure the ultraviolet (UV) light levels and calculate the UV index.

Components Needed

• UV Sensor (e.g., VEML6075)
• Arduino
• Jumper Wires

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Circuit Setup

1. Connect the UV sensor to the Arduino using I2C (SDA, SCL, VCC, GND).

The UV sensor reads the intensity of UV light, which is then processed by the Arduino to calculate the UV index.

Code for UV Index Monitoring

Upload the following code to your Arduino to measure the UV index:

#include 
#include 

VEML6075 uvSensor;

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

void loop() {
  float uvIndex = uvSensor.readUVIndex();
  Serial.print("UV Index: ");
  Serial.println(uvIndex);
  delay(1000);
}
            

Explanation

The sensor measures the UV light intensity, and the Arduino calculates the UV index based on standard formulas.

Troubleshooting

• If the readings are inaccurate, ensure the sensor is facing towards the UV light source.
• Check the I2C wiring and sensor initialization in the code.