Gravity: GUVA-S12SD Analog UV Light Sensor (200-370nm, UVA, UVB, UVC) (แท้ DFRobot)

• Operating Voltage: 5V
• Output voltage: DC 0-1V(Corresponding 0-10 UV index)
• Operating Current: 0.06mA(0.1mA max)
• UV wavelength detect: 200-370nm
• Test accuracy: ±1UV INDEX
• Response time: <0.5s
• Operating temperature: -20℃-85℃
• Dimension: 30 x 22mm

Applications

• UV-A Lamp Monitoring
• UV Index Monitoring
• DIY UV electronic project,etc

Documents

• Wiki Doc                                                 
• Schematic                             
• GUVA-S12SD datasheet                 
• Guide for UV sensor Appliction        
• SGM8521 datasheet                     

Shipping List

• UV Sensor x1
• Analog Cable x1 

Diagram

💡Note: The Analog Value in the diagram above is calculated based on the ADC of Arduino UNO R3 (10-bit, reference voltage 5V). If using other MCUs (such as ESP32) with a different ADC reference voltage and precision, please make the corresponding conversion.

Sample Code

/*
# This Sample code is for testing the UV Sensor .
#Connection:
VCC-5V
GND-GND
OUT-Analog pin 0
*/

void setup() {
Serial.begin(9600); // open serial port, set the baud rate to 9600 bps
}

void loop() {
int sensorValue;
int analogValue = analogRead(A0); //connect UV sensors to Analog 0
if (analogValue < 20) {
sensorValue = 0;
} else {
sensorValue = 0.05 * analogValue - 1;
}

Serial.print("UV Index: ");
if (sensorValue < 12) Serial.println(sensorValue); //print the value to serial
else Serial.println("11+ Warning: High Ultraviolet! Exceeded UV index range!");
delay(1000);
}