Ml8511 Ultra Violet Sensor Module

ML8511 Ultra Violet Sensor Module

UV Detection Analog Output Weather Monitoring

Infographic Overview

ML8511 UV SENSOR MODULE pstrong>ultraviolet light sensor that measures UV intensity and converts it into an analog voltage output.

It detects:

• UV-A (tanning rays)

• UV-B (burning rays)

Sensitive in 280390 nm range

Working Principle

UV Light Photodiode'Current Generated'Internal Amplifier'Analog Voltage Output

The sensor uses a UV-sensitive photodiode Converts light intensity into voltage proportional to UV level

Pin Configuration

VIN 3V5V Power3.3V Regulated OutputGND GroundOUT Analog OutputEN Enable (HIGH = ON)

Connect OUT Arduino analog pin (A0)

> Medium UV Medium voltage High UV Higher voltage

Output is linear with UV intensity (mW/cm)

Key Features

Detects UV-A & UV-B radiation Analog output (easy to read with ADC) Built-in amplifier (no extra op-amp needed) Low power consumption (~300 A) Small size & easy integration

Technical Specifications

Smart Capabilities

UV Index Monitoring

• Continuous UV intensity tracking

Low Power Mode

• Suitable for battery devices

Applications

UV index meter Weather stations Sunburn warning devices Wearable UV trackers Smart agriculture systems Environmental monitoring

Arduino Connection Example

ML8511 ArduinoVIN 5V (or 3.3V)GND GNDOUT A0EN 3.3V (or digital pin)

Sample Code

int uvPin = A0;void setup() {Serial.begin(9600);}void loop() {int uvValue = analogRead(uvPin);float voltage = uvValue * (5.0 / 1023.0);Serial.println(voltage);delay(500);}

Important Notes

Output is small voltage (~01V) Needs calibrationLow power consumption Detects harmful UV rays Good for outdoor projects

Limitations

Cannot distinguish exact UV-A vs UV-B separately Requires calibration for accuracy Sensitive to angle & environment

Pro Tips

Use 3.3V for stable readings Calibrate using UV index reference (weather data) Avoid shadows or obstructions Combine with:

• Temperature sensor

• Humidity sensor

For better environmental analysis

Summary

The ML8511 UV Sensor Module is a compact and efficient sensor for measuring ultraviolet radiation.

Ideal for:

• Weather monitoring

• Health safety devices

• IoT