Gravity: I2C IP68 Waterproof Ambient Light Sensor (1-65535lx) แท้จาก DFRobot

INTRODUCTION

Wiring Diagram of Gravity: I2C Waterproof Ambient Light Sensor and Arduino Uno

SPECIFICATION

• Supply Voltage: 5V
• Operating Current: 1µA
• Detection Range: 1 - 65535lx
• Accuracy: 1.2lx
• Communication Mode: I2C
• Operating Temperature: -40 to 85°C/-40 to 185℉
• Waterproof Rating: IP68
• Thread Length: 10mm
• Cutout Size: 26mm
• Wrench Size: 31mm
• Cable Diameter: 3mm
• Wire Length: 1m

• Low power consumption
• IP68 waterproof rating
• I2C Communication

• Greenhouses
• Smart car lights
• Weather stations

• Gravity: I2C Waterproof Ambient Light Sensor (1-65535lx) × 1

Board Overview

Dimension

Tutorial

Requirements

• Hardware
  • DFRduino UNO R3 (or similar) x 1
  • Gravity: Waterproof Ambient Light Sensor(1-65535lx) x1
  • M-M/F-M/F-F Jumper wires

• Software
  • Arduino IDE

Connection Diagram

Sample Code

#include "Wire.h"
#define address 0x23 //I2C Address 0x23
void setup()
{
Serial.begin(9600);
Wire.begin();
}
uint8_t buf[4] = {0};
uint16_t data, data1;
float Lux;
void loop()
{
readReg(0x10, buf, 2); //Register Address 0x10
data = buf[0] << 8 | buf[1];
Lux = (((float)data )/1.2);
Serial.print("LUX:");
Serial.print(Lux);
Serial.print("lx");
Serial.print("\n");
delay(500);
}
uint8_t readReg(uint8_t reg, const void* pBuf, size_t size)
{
if (pBuf == NULL) {
Serial.println("pBuf ERROR!! : null pointer");
}
uint8_t * _pBuf = (uint8_t *)pBuf;
Wire.beginTransmission(address);
Wire.write(®, 1);
if ( Wire.endTransmission() != 0) {
return 0;
}
delay(20);
Wire.requestFrom(address, (uint8_t) size);
for (uint16_t i = 0; i < size; i++) {
_pBuf[i] = Wire.read();
}
return size;
}

Expected Results

The light value collected by the sensor can be viewed on serial monitor.