Arduino+0.96OLED+GY30（BH1750）光照强度采集光照传感器光控灯实验Arduino+0.96OLED+GY30光照传感器Module UNO⼀、电路连接VCC <-----> 5VGND <-----> GNDSCL <-----> A5SDA <-----> A4ADD <-----> NCOLED接线⽅式：VCC<————>3.3VGND<————>GNDSCL<————>SCLSDA<————>SDALED1<————>10LED2<————>11⼆、实验材料Uno R3开发板GY-30光照传感器⾯包板及配套连接线2个LED灯1个0.96OLED三、功能1、OLED实时显⽰光照强度2、当光照强度⼤于600LX时关灯3、当光照强度⼤于200⼩于600时打开冷光灯，并随着光强度变化⽽变化，强度越⼤灯光越暗（PWM调节），同时OLED显⽰开关状态；4、当光照强度⼩于200时打开暧光灯关闭冷光，并随着光强度变化⽽变化，强度越⼤灯光越暗（PWM调节），同时OLED显⽰开关状态；5、使⽤u8glib库操作OLED屏6、串⼝实时发送相应标志数据，可通过ESP8266发送到APP端显⽰参数特点：⽆需⼈为⼲预的⾃动控制设备。
⽰例程序/*Measurement of illuminance using the BH1750FVI sensor moduleConnection:Module UNOVCC <-----> 5VGND <-----> GNDSCL <-----> A5SDA <-----> A4ADD <-----> NCOLED接线⽅式：VCC<————>3.3VGND<————>GNDSCL<————>SCLSDA<————>SDALED1<————>10LED2<————>11LingShun LAB*/#include "U8glib.h"#include <Wire.h>// OLED库#define ADDRESS_BH1750FVI 0x23 //ADDR="L" for this module#define ONE_TIME_H_RESOLUTION_MODE 0x20//One Time H-Resolution Mode://Resolution = 1 lux//Measurement time (max.) = 180ms//Power down after each measurementconst unsigned char pinMotorCW = 10; // 接控制电机顺时针转的 H 桥引脚const unsigned char pinMotorCCW = 11; // 接控制电机逆时针转的 H 桥引脚byte highByte = 0;byte lowByte = 0;unsigned int sensorOut = 0;unsigned int illuminance = 0;unsigned int Warm_Empty = 0; //暧光变量unsigned int Cold_Empty = 0;//冷光int ledValue = 0; //保存LED灯占空⽐const uint8_t bitmap_g [] U8G_PROGMEM ={0x01,0x00,0x21,0x08,0x11,0x08,0x09,0x10,0x09,0x20,0x01,0x00,0xFF,0xFE,0x04,0x40,0x04,0x40,0x04,0x40,0x04,0x40,0x08,0x42,0x08,0x42,0x10,0x42,0x20,0x3E,0xC0,0x00//"光",0 };const uint8_t bitmap_q [] U8G_PROGMEM ={0x00,0x00,0xF9,0xFC,0x09,0x04,0x09,0x04,0x09,0xFC,0x78,0x20,0x40,0x20,0x43,0xFE,0x42,0x22,0x7A,0x22,0x0B,0xFE,0x08,0x20,0x08,0x24,0x08,0x22,0x57,0xFE,0x20,0x02//"强",1 };const uint8_t bitmap_d [] U8G_PROGMEM ={0x01,0x00,0x00,0x80,0x3F,0xFE,0x22,0x20,0x22,0x20,0x3F,0xFC,0x22,0x20,0x22,0x20,0x23,0xE0,0x20,0x00,0x2F,0xF0,0x24,0x10,0x42,0x20,0x41,0xC0,0x86,0x30,0x38,0x0E//"度",2 };const uint8_t bitmap_x [] U8G_PROGMEM ={0x00,0x00,0x1F,0xF0,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,0x10,0x10,0x1F,0xF0,0x04,0x40,0x44,0x44,0x24,0x44,0x14,0x48,0x14,0x50,0x04,0x40,0xFF,0xFE,0x00,0x00//"显",3 };const uint8_t bitmap_s [] U8G_PROGMEM ={0x00,0x00,0x3F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFE,0x01,0x00,0x01,0x00,0x11,0x10,0x11,0x08,0x21,0x04,0x41,0x02,0x81,0x02,0x05,0x00,0x02,0x00//"⽰",4 };void draw(void) {u8g.setColorIndex(1);u8g.drawBitmapP ( 25 , 0 , 2 , 16 , bitmap_g);u8g.drawBitmapP ( 42 , 0 , 2 , 16 , bitmap_q );u8g.drawBitmapP ( 59 , 0 , 2 , 16 , bitmap_d );u8g.drawBitmapP ( 76 , 0 , 2 , 16 , bitmap_x );u8g.drawBitmapP ( 93 , 0 , 2 , 16 , bitmap_s );u8g.setFont(u8g_font_8x13); //使⽤8x13⼤⼩的字符u8g.setPrintPos(0, 30);u8g.print("Beam :");u8g.setPrintPos(55, 30);u8g.print(illuminance);u8g.setPrintPos(90, 30);u8g.print("LX");//LED的状态u8g.setPrintPos(0, 45);u8g.print("Cold :");u8g.setPrintPos(55, 45);u8g.print(Warm_Empty);u8g.setPrintPos(80, 45);u8g.print("OFF/ON");u8g.setPrintPos(0, 60);u8g.print("Warm :");u8g.setPrintPos(55, 60);u8g.print(Cold_Empty);u8g.setPrintPos(80, 60);u8g.print("OFF/ON");}void setup() {Serial.begin(9600);Wire.begin();pinMode(pinMotorCW,OUTPUT);//冷灯pinMode(pinMotorCCW,OUTPUT);//暧灯digitalWrite(pinMotorCCW,LOW);}void loop() {Wire.beginTransmission(ADDRESS_BH1750FVI); //"notify" the matching deviceWire.write(ONE_TIME_H_RESOLUTION_MODE); //set operation modeWire.endTransmission();delay(180);Wire.requestFrom(ADDRESS_BH1750FVI, 2); //ask Arduino to read back 2 bytes from the sensor highByte = Wire.read(); // get the high bytelowByte = Wire.read(); // get the low bytesensorOut = (highByte<<8)|lowByte;illuminance = sensorOut/1.2;Serial.println("a," + String(illuminance));delay(300);//Serial.print(illuminance);//Serial.println(" lux");if(illuminance <= 600){if(illuminance >= 200){unsigned char i;i = map(illuminance, 200, 600, 200, 0); //将200到600之间的数据映射成200到0之间的数据motorCW(i);Warm_Empty=LOW;Cold_Empty=HIGH;}else{unsigned char i;i = map(illuminance, 0, 200, 200, 100); //将400到800之间的数据映射成200到100之间的数据motorCCW(i);Warm_Empty=HIGH;Cold_Empty=LOW;}}else{motorStop();Warm_Empty =LOW;Cold_Empty =LOW;}Serial.println("b," + String(Warm_Empty));Serial.println("c," + String(Cold_Empty));u8g.firstPage();do {draw();} while( u8g.nextPage() );delay(200);}// 关闭冷灯和暧灯void motorStop(){digitalWrite(pinMotorCW, LOW);digitalWrite(pinMotorCCW, LOW);}// 冷灯以参数设定的 pwm 值光强度void motorCW(unsigned char pwm){analogWrite(pinMotorCW, pwm);digitalWrite(pinMotorCCW, LOW);}// 暧灯以参数设定的 pwm 值光强度void motorCCW(unsigned char pwm){digitalWrite(pinMotorCW, LOW);}。
