Ml8511 Ultra Violet Sensor Module Documentation

UV Sensitivity

280-390nm

Supply Voltage

3.3V to 5V

Supply Current

2.5mA

Output Voltage

0-5V (analog signal)

Response Time

10ms

Operating Temperature

-20C to 85C

Operating Humidity

20% to 80% RH

Dimensions

14mm x 18mm x 2.5mm

Weight

2g

Applications

Weather Stations: Monitor UV radiation levels and provide real-time UV index readings.
Wearable Devices: Track UV exposure and provide alerts for sun protection.
Environmental Monitoring: Measure UV radiation levels in industrial or agricultural settings.
Smart Home Systems: Integrate with automation systems to control UV-related devices, such as UV lamps or sunshades.

Pinouts

The ML8511 Ultra Violet Sensor Module has the following pinouts

VCC

Supply voltage (3.3V to 5V)

GND

Ground

OUT

Analog output signal (0-5V)

Conclusion

The ML8511 Ultra Violet Sensor Module is a versatile, high-sensitivity UV radiation sensor that is easy to use and integrate into various IoT applications. Its compact design, low power consumption, and simple analog output make it an ideal choice for a wide range of projects, from weather stations to wearable devices.

Pin Configuration

Ml8511 Ultra Violet Sensor Module Pinout Guide
The ML8511 Ultra Violet Sensor Module is a popular IoT component used to detect and measure ultraviolet (UV) radiation levels. The module has a total of 4 pins, which are described below:
Pinout Structure:
1. VCC
Function: Power supply pin
Description: This pin is used to power the ML8511 UV sensor module. A voltage supply of 3.3V to 5V is recommended.
Connection: Connect to a power source (e.g., a microcontroller's VCC pin or a battery) with a voltage range of 3.3V to 5V.
2. GND
Function: Ground pin
Description: This pin is used to provide a return path for the power supply and to connect the module to ground.
Connection: Connect to a ground pin on the microcontroller or a common ground point in the circuit.
3. OUT
Function: Analog output pin
Description: This pin outputs an analog voltage signal that corresponds to the detected UV radiation level. The output voltage ranges from 0V to VCC.
Connection: Connect to an analog-to-digital converter (ADC) input on a microcontroller, such as an Arduino board, to read the sensor output.
4. EN
Function: Enable pin (optional)
Description: This pin is used to enable or disable the UV sensor module. When the EN pin is set high (connected to VCC), the module is enabled. When set low (connected to GND), the module is disabled.
Connection: Connect to a digital output pin on the microcontroller to control the enable state of the module. If not used, the EN pin can be left disconnected or connected to VCC for continuous operation.
Example Connection Diagram:
Here's an example connection diagram for an Arduino Uno board:
VCC: Connect to Arduino's 5V pin
GND: Connect to Arduino's GND pin
OUT: Connect to Arduino's A0 pin (analog input)
EN: Connect to Arduino's D2 pin (digital output) or leave disconnected for continuous operation
Remember to adjust the connection diagram according to your specific microcontroller and project requirements.

Code Examples

Ml8511 Ultra Violet Sensor Module Documentation

Overview

The ML8511 Ultra Violet Sensor Module is a low-cost, high-sensitivity UV sensor designed to measure the intensity of ultraviolet radiation in the 280-390nm range. This module is ideal for applications such as UV index monitoring, sun protection, and phototherapy.

Pinout

VCC: Power supply (3.3V-5V)
 GND: Ground
 OUT: Analog output signal

Technical Specifications

Operating Voltage: 3.3V-5V
 Operating Current: 10mA
 UV Range: 280-390nm
 Sensitivity: 1.3V-2.5V (typical)
 Accuracy: 10%
 Response Time: 10ms

Example Code

### Example 1: Basic UV Index Measurement using Arduino

In this example, we will connect the ML8511 UV sensor to an Arduino board and measure the UV index.

```cpp
const int uvPin = A0;  // Connect the OUT pin of the ML8511 to Analog Input 0 on the Arduino

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

void loop() {
  int uvReading = analogRead(uvPin);
  float uvVoltage = (uvReading  5.0) / 1024.0;
  float uvIndex = map(uvVoltage, 1.3, 2.5, 0, 11); // Map the voltage reading to a UV index value

Serial.print("UV Index: ");
  Serial.println(uvIndex);
  delay(1000);
}
```

### Example 2: UV Index Monitoring using Raspberry Pi (Python)

In this example, we will connect the ML8511 UV sensor to a Raspberry Pi and create a Python script to monitor the UV index.

```python
import RPi.GPIO as GPIO
import time

# Set up the GPIO library
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.IN)  # Connect the OUT pin of the ML8511 to GPIO 17 on the Raspberry Pi

while True:
    uv_reading = GPIO.input(17)
    uv_voltage = (uv_reading  3.3) / 1024.0
    uv_index = (uv_voltage - 1.3) / 0.25  # Calculate the UV index

print("UV Index:", uv_index)
    time.sleep(1)
```

### Example 3: UV Index Display using ESP32 and OLED Display (MicroPython)

In this example, we will connect the ML8511 UV sensor to an ESP32 board and an OLED display, and create a MicroPython script to display the UV index on the OLED display.

```python
import machine
import ssd1306

# Set up the OLED display
i2c = machine.I2C(-1, scl=machine.Pin(5), sda=machine.Pin(4))
oled = ssd1306.SSD1306_I2C(64, 48, i2c)

# Set up the ML8511 UV sensor
uv_pin = machine.ADC(machine.Pin(32))  # Connect the OUT pin of the ML8511 to Analog Input 32 on the ESP32

while True:
    uv_reading = uv_pin.read_u16()
    uv_voltage = (uv_reading  3.3) / 65536.0
    uv_index = (uv_voltage - 1.3) / 0.25  # Calculate the UV index

oled.fill(0)
    oled.text("UV Index:", 0, 0)
    oled.text(str(uv_index), 0, 10)
    oled.show()
    time.sleep(1)
```

Note: In all examples, ensure that the ML8511 UV sensor module is properly connected to the microcontroller or single-board computer, and that the voltage supply is within the recommended range.

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Ml8511 Ultra Violet Sensor Module