QB104 UV Sensor

Product Introduction #

UV Sensor is a test of the best amount of ultraviolet sensor, can use the photosensitive element by photovoltaic mode and light guide mode converted ultraviolet signal into measurable electrical signal, it does not need to use the wavelength filter, only sensitive to ultraviolet, direct output corresponding ultraviolet index (UV INDEX) linear voltage, output voltage range about 0 ~ 1100 mV.

Application reference: UV tester, UV lamp monitoring, sterilization lamp equipment, etc.

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Parameter Specification #

Parameter	Value/Description
Operating voltage	3.3V-5V
Output voltage	0~5V (corresponding to UV index 0~10)
Test accuracy	±1 UV Index
Wavelength of response	200~370nm
Output signal	Analog signal
Operating temperature	-20°C~+85°C
Size	3.2cm*2.4cm

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Wiring Diagram #

Attention: Expansion board is attached to esp32 controller board.

UV Sensor	ESP32
S	39
VCC	5V
GND	GND

 

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Sample Code #

#include <ACB_Ultraviolet.h>//Import UV library

ACB_Ultraviolet uv;

 

void setup() {

Serial.begin(115200);//Set serial port

uv.setpin(39);//Set the pin of the UV sensor

}

 

void loop() {

int uv_Value = uv.read(“analogValue”);//Uv analog value

int uv_level = uv.read(“level”);//Uv Level

Serial.print(“uv value: “);

Serial.println(uv_Value);

Serial.print(“uv level: “);

Serial.println(uv_level);

Serial.println(“———————“);

delay(100);

}

Note:If you are using an Arduino board, upload the program below and connect the hardware to PIN A0

 

Arduino code #

int level;

void setup() {
Serial.begin(9600);//Set serial port
pinMode(A0, INPUT);//Set pin A0 to input mode
}

void loop() {
int uv_value = analogRead(A0);
if (uv_value < 86)
{
level = 0;

} else if (uv_value < 171)
{
level = 1;
} else if (uv_value < 248)
{
level = 2;
} else if (uv_value < 330)
{
level = 3;
} else if (uv_value < 413)
{
level = 4;
} else if (uv_value < 495)
{
level = 5;
} else if (uv_value < 578)
{
level = 6;
} else if (uv_value < 660)
{
level = 7;
} else if (uv_value < 743)
{
level = 8;
} else if (uv_value < 825)
{
level = 9;
} else if (uv_value < 908) { level = 10; } else if (uv_value >= 990)
{
level = 11;
}

Serial.print("uv value: ");
Serial.println(uv_value);
Serial.print("uv level: ");
Serial.println(level);
Serial.println("---------------------");
delay(1000);
}

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Test Result #

After you successfully connect the line according to the wiring diagram and successfully upload the correct program, when you irradiate the UV sensor with the UV lamp or put the UV sensor in the outdoor sunlight, the serial port monitor will output the current analog value of UV and the corresponding level.

 

Ultraviolet grade index	Range of UV analog values
0	<372
1	372~743
2	744~1115
3	1116~1487
4	1488~1859
5	1860~2231
6	2232~2603
7	2604~2975
8	2976~3347
9	3348~3719
10	3720~4094
11	≥4095

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Related Resources #

PDF and Code

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Get One Now #

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