标签:-- return ttl serial bottom scl ati gprs mis
本实采用的硬件,除了一个串口模块以外(约200元),其他均可以从taobo上面找到标准产品
比较有意思的地方:可以通过手机app,微信随时掌控监测数据的情况。
------------------------------------------------------------------------万恶的分界线------------------------------------------------------------------------------------
使用乐为物联GPRS模块搭建远程环境监测系统
1 目的
试验基于Arduino硬件平台,采用乐为物联GPRS模块监控不具备有线网络接入条件的山区环境,可以用于农业、林业数据采集。
2 实验条件
硬件设备列表:
1) Arduino Nano约50RMB,
2) 乐为物联GPRS模块为测试版(必要的GPRS资费SIM卡),
3) DSM501A模块约30RMB,颗粒物传感器,目的在于监测花粉浓度,PWM输出,
4) HTF3223LF模块23RMB,用于监测空气温湿度,NTC温度输出(试验采用10k上拉),湿度频率输出,
5) BH1750模块13RMB,监测光照强度,I2C输出,
6) 降雨传感器,大约10元,用于监测降雨情况,逻辑电平输出,
7) LCD1602,大约10元,
3 硬件连线
1) 乐为物联GPRS模块为6脚,本次只用1、2、3、4脚,1脚为Vcc接电源5-12伏输入,2脚为接地,3脚为TTL电平TX,4脚为TTL电平RX。
2) DSM501A,本次只使用2、3、5脚,2脚为Vout 2 output (PWM)接Arduino D8, 3脚为Vcc接电源5伏,5脚为GND接地。
3) HTF3223LF模块,使用1、2、3、4脚,1脚为NTC输出端,接Arduino A0,2脚为GND接地,3脚为湿度频率输出,接Arduino D2,4脚为Vcc接电源5伏。
4) BH1750模块为5脚,I2C接口,本次不用接ADD脚,VCC接电源5伏,SCL接Arduino A5,SDA接Arduino A4,GND接地。
5) 降雨传感器为4脚,逻辑输出接Arduino D10,VCC接电源5伏,GND接地。
6)
LCD1602,本次采用4数据线连接法,RS 接Arduino D12,Enable接Arduino D11, LCD D4接Arduino
D4,LCD D5接Arduino D5,LCD D6接Arduino D6,LCD D7接Arduino D7,LCD R/W 接地,LCD
V0接10k可调电阻,LCD使用5伏供电,背景灯可设开关。
XML/HTML代码
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#include<string.h>
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//#include <SoftwareSerial.h>
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#include <Wire.h>
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#include <math.h>
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//#include <MsTimer2.h>
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#include <LiquidCrystal.h>
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LiquidCrystal lcd(12, 11, 4, 5, 6, 7);
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//* LCD RS pin to digital pin 12
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// * LCD Enable pin to digital pin 11
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// * LCD D4 pin to digital pin 4
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// * LCD D5 pin to digital pin 5
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// * LCD D6 pin to digital pin 6
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// * LCD D7 pin to digital pin 7
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// * LCD R/W pin to ground
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// * 10K resistor:
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// * ends to +5V and ground
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// * wiper to LCD VO pin (pin 3)
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//SoftwareSerial mySerial(9, 10); // RX, TX
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//String inputString = "";
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const int buttonPin = 10; //the number of the jiangyu input pin
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int buttonState = 0; // variable for reading the jiangyu status
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int Rain = 1;
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int BH1750address = 0x23;//BH1750 I2C地址
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byte buff[2];
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float BH = 0;
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const int analogInPin = A0; // Analog input pin that the potentiometer is attached to//*//Freqinput pin D2
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int pin = 8;//DSM501A input D8
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float wuchaxiuzheng = 0;
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unsigned long duration;
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unsigned long starttime;
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unsigned long endtime;
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unsigned long sampletime_ms = 30000;
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unsigned long lowpulseoccupancy = 0;
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float ratio = 0;
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float concentration = 0;
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float tempconcentration=0;
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int sensorValue = 0; // value read from the NTC
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int TEMPRATURE=0;
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int i=0;
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float R_Data=0;
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float U_data [111]={4.67,4.65,4.64,4.62,4.60,4.57,4.55,4.53,4.51,4.48,4.46,4.43,4.40,4.38,4.35,4.32,4.28,4.25,4.22,4.19,4.15,4.11,4.08,4.04,4.00,3.96,3.92,3.88,3.83,3.79,3.75,3.70,3.65,3.61,3.56,3.51,3.47,3.42,3.37,3.32,3.27,3.22,3.17,3.11,3.06,3.01,2.96,2.91,2.86,2.81,2.75,2.70,2.65,2.60,2.54,2.50,2.44,2.39,2.34,2.29,2.24,2.20,2.15,2.10,2.06,2.01,1.96,1.92,1.87,1.83,1.78,1.74,1.70,1.66,1.62,1.58,1.54,1.50,1.47,1.43,1.39,1.36,1.32,1.29,1.25,1.22,1.19,1.15,1.12,1.09,1.06,1.04,1.01,0.98,0.96,0.93,0.91,0.88,0.86,0.84,0.81,0.79,0.77,0.75,0.73,0.713,0.69,0.67,0.66,0.64,0.62};//温度对应NTC电表格
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int divider[6] = {0, 1, 8, 64, 256, 1024};//read RH use interrupt get F
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int prescaler = 5;
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double count = 0;
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double middle = 0;
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char x = 0;
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int Fout=0;
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int RH=0;
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byte du[8]={
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B00111,
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B00101,
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B00111,
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B00000,
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B00000,
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B00000,
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B00000,
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};//define 1602 char
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ISR(TIMER1_OVF_vect)
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{
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if (prescaler < 4)
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{
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prescaler++;
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}
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}
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void interrupt()
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{
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if (!x)
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{
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count = TCNT1;
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TCNT1 = 0x000;
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TCCR1B = prescaler;
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attachInterrupt(0, interrupt, FALLING);
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}
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else
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{
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middle = TCNT1;
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attachInterrupt(0, interrupt, RISING);
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}
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x = ~x;
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}
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void setup()
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{
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Wire.begin();
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Serial.begin(9600);
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// mySerial.begin(9600);
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// inputString.reserve(200);
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// MsTimer2::set(2000, timer); //定时器设置,每2秒触发一次timer函数操作
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// MsTimer2::start();
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// pinMode(buttonPin, INPUT);
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analogReference(DEFAULT);//INTERNAL
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lcd.createChar(1,du);
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lcd.begin(16, 2);
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lcd.clear();
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// lcd.setCursor(0, 0);
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// lcd.print("PM2.5=");
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// lcd.setCursor(0, 1);
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// lcd.print("T= ");
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// //lcd.write(1);
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// lcd.print(" RH= %");
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// Serial.begin(9600);
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pinMode(buttonPin, INPUT);
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pinMode(8,INPUT);
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TIMSK1 = 0x01;
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TCCR1A = 0x00;
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attachInterrupt(0, interrupt, RISING);
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starttime = millis();
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}
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void loop()
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{
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duration = pulseIn(pin, LOW);
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lowpulseoccupancy += duration;
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endtime = millis();
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if ((endtime-starttime) > sampletime_ms)
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{
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ratio = (lowpulseoccupancy-endtime+starttime + sampletime_ms)/(sampletime_ms*10.0); // Integer percentage 0=>100
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concentration = 1.1*pow(ratio,3)-3.8*pow(ratio,2)+520*ratio+0.62; // using spec sheet curve
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//Serial.print(lowpulseoccupancy);
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// Serial.print(",");
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//Serial.print(ratio);
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// Serial.print("DSM501A:");
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// Serial.println(concentration);
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// Serial.print(";");
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//Serial.println(endtime-starttime);
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wuchaxiuzheng = (endtime-starttime-30000)/30000.0;
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//Serial.println(wuchaxiuzheng);
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concentration = (1.00-wuchaxiuzheng)*concentration;
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//Serial.println(concentration);
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lcd.setCursor(6, 0);
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lcd.print(concentration);
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lcd.print("pcs/0.01cf");
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// lowpulseoccupancy = 0;
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// starttime = millis();
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}
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sensorValue = analogRead(analogInPin); // read the analog in value:
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delay(10);
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R_Data=sensorValue*5/1024.0;
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//Serial.print("R_Data = " );
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//Serial.print(R_Data);
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for(i=0;i<111;i++){
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if(R_Data>4.67)
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{
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TEMPRATURE =-30;//对应-30℃
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}
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else if(R_Data<0.62)
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{
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TEMPRATURE=80; //对应80℃
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}
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else if(R_Data<U_data[i]&&R_Data>U_data[i+1])
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{
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TEMPRATURE=int(i-30-3);
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}
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}
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// Serial.print("T:" );
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// Serial.print(TEMPRATURE);
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// Serial.print(";" );
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delay(10);
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lcd.setCursor(0, 0);
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lcd.print("PM2.5=");
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lcd.setCursor(0, 1);
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lcd.print("T= ");
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//lcd.write(1);
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lcd.print(" RH= %");
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// lcd.setCursor(0, 1);
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// lcd.print("T= ");
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// //lcd.write(1);
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// lcd.print(" RH= %");
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lcd.setCursor(2, 1);
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lcd.print(TEMPRATURE);
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lcd.write(1);
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lcd.print("C");
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Fout=(16000000.0 / divider[prescaler] / count);
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//Serial.print("Vsensor=" );
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//Serial.print(sensorValue);
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//Serial.print(", " );
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//Serial.print("Freq=");
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//Serial.print(Fout);
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// Serial.print(" ");
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// Serial.print(int(divider));
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// Serial.print(" ");
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// Serial.print(prescaler);
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// Serial.print(" ");
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// Serial.println(count);
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if (Fout<8115)
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{
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RH=100;
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// Serial.print("RH:100");
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// Serial.println(";");
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lcd.setCursor(13, 1);
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lcd.print("H.");
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}
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else if(Fout>9595)
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{
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RH=0;
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// Serial.print("RH:0");
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// Serial.println(";");
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lcd.setCursor(13, 1);
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lcd.print("L.");
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}
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else
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{
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RH=(9595-Fout)/14.8;
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// Serial.print("RH:");
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// Serial.print(RH);
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// Serial.println(";");
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lcd.setCursor(13, 1);
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lcd.print(RH);
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}
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if (prescaler > 1)
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{
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prescaler--;
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delay(200);
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}
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//if( flag )//
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// {
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// Serial.print( BH1750() );
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// Serial.println("[lux]");
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//
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// flag = 0;//归零,等着定时中断重新赋值
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// }
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delay(2000);
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if(tempconcentration!=concentration)
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{
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tempconcentration=concentration;
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BH=BH1750();
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// read the state of the jiangyu value:
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buttonState = digitalRead(buttonPin);
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// check if the jiangyu is low.
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// if it is, the buttonState is LOW:
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if (buttonState == LOW) {
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Rain=0;
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}
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else {
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Rain=1;
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}
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//lewei ouput by computer tools
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// Serial.print("D:");
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// Serial.print(concentration);
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// Serial.print(";");
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// Serial.print("T:" );
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// Serial.print(TEMPRATURE);
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// Serial.print(";" );
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// Serial.print("R:");
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// Serial.print(RH);
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// Serial.print(";" );
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// Serial.print("B:" );
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// Serial.print(BH);
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// Serial.print(";" );
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// Serial.print("W:");
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// Serial.print(Rain);
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// Serial.println(";");
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//lewei ouput by GPRS
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lcd.setCursor(0, 1);
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lcd.print(" ");
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lcd.setCursor(0, 1);
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lcd.print(BH);
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lcd.print("LUX");
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//delay(5000);
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String tempstring="@uploading(01,D,";
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String tempstring1=")";
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Serial.print(tempstring);
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Serial.print(int(concentration));
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Serial.println(tempstring1);
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// delay(12000); min transtime
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delay(30000);
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String tempstring2="@uploading(01,T,";
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String tempstring3=")";
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Serial.print(tempstring2);
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Serial.print(TEMPRATURE);
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Serial.println(tempstring3);
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// delay(12000);
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delay(30000);
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String tempstring4="@uploading(01,R,";
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String tempstring5=")";
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Serial.print(tempstring4);
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Serial.print(RH);
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Serial.println(tempstring5);
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// delay(15000);
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delay(30000);
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String tempstring6="@uploading(01,B,";
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String tempstring7=")";
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Serial.print(tempstring6);
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Serial.print(int(BH));
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Serial.println(tempstring7);
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// delay(2000);
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delay(30000);
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String tempstring8="@uploading(01,W,";
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String tempstring9=")";
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Serial.print(tempstring8);
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Serial.print(Rain);
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Serial.println(tempstring9);
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delay(30000);
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lowpulseoccupancy = 0;
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starttime = millis();
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}
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}
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double BH1750() //BH1750设备操作
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{
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int i=0;
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double val=0;
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//开始I2C读写操作
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Wire.beginTransmission(BH1750address);
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Wire.write(0x10);//1lx reolution 120ms//发送命令
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Wire.endTransmission();
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delay(200);
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//读取数据
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Wire.beginTransmission(BH1750address);
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Wire.requestFrom(BH1750address, 2);
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while(Wire.available()) //
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{
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buff[i] = Wire.read(); // receive one byte
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i++;
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}
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Wire.endTransmission();
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if(2==i)
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{
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val=((buff[0]<<8)|buff[1])/1.2;
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}
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if(val<0) val=56134+val;
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return val;
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}
Arduino+GPRS 的环境监控方案
标签:-- return ttl serial bottom scl ati gprs mis
原文地址:http://www.cnblogs.com/wanghuaijun/p/7492044.html