技能梳理6@NODEMCU+BH1750+DS18B20+DHT11+PWM电机+ONENET

智慧鱼缸，检测土壤湿度，检测室内温湿度和光照，检测鱼缸水位，检测鱼缸温度，各种蜂鸣器报警(水温超20-24)和控制舵机（步进电机），控制两个水泵，一个需要是从植物里面抽水到鱼缸，另外一个是供养氧作用，数据上传onenet，显示在oled，ESP32做主MCU,下行控制氧气水泵

1、项目简介

2、实现逻辑

3、应用场景

#智慧鱼缸

4、核心代码梳理


const char *ssid = "ziroom602";//WIFI
const char *password = "4001111";//WIFI密码
const char* serverIP = "183.230.40.33"; //欲访问的地址
uint16_t serverPort = 80;         //服务器端口号
String url = "http://api.heclouds.com/devices/7xxxxxxxxx7/datapoints?type=3";//网址 设备ID
String api="h8txxxxxxxxxxxxxxxxxxxYFNsgW4=";//api-key
String post;//http请求
int Content_Length;
WiFiClient client; //声明一个客户端对象，用于与服务器进行连接OneWire  ds(0);  // on pin 10 (a 4.7K resistor is necessary)
BH1750FVI myBH1750(BH1750_DEFAULT_I2CADDR, BH1750_CONTINUOUS_HIGH_RES_MODE_2, BH1750_SENSITIVITY_DEFAULT, BH1750_ACCURACY_DEFAULT);
U8G2_SSD1306_128X64_NONAME_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18, /* data=*/ 19, /* cs=*/ 5, /* dc=*/ 16, /* reset=*/ 17);
Servo myservo;  // create servo object to control a servo
#define DHTTYPE       DHT11 //选择的类型int     servoPin    = 14;      // GPIO pin used to connect the servo control (digital out)
#define LED_BUILTIN   02
#define WATER         15
#define GROUND_H      4
#define WATER_MOTOR   12 //
#define O2_MOTOR      13
#define BEEP          33
#define DHTPIN        27 //DHT11 DATA 数据引脚
DHT dht(DHTPIN, DHTTYPE);
long  ground_h = 0, water = 0, pwm_value = 0;
float tank_temp = 0, house_h = 0, house_t = 0, light_value = 0;
int8_t rx_data = 0, beep_flag = 0, water_ok_flag = 0, water_in_flag = 0, O2_in_flag = 0;
static unsigned long time_=0;//定义初始发送时间为0
static unsigned long time_out=0;//定义超时发送时间为0void setup(void)
{//DHT11dht.begin();  //OLEDu8g2.begin();u8g2.enableUTF8Print();        // enable UTF8 support for the Arduino print() function//USARTSerial.begin(9600);//PIN CFGpinMode(LED_BUILTIN, OUTPUT);pinMode(WATER_MOTOR, OUTPUT);pinMode(O2_MOTOR, OUTPUT); pinMode(BEEP, OUTPUT);digitalWrite(BEEP, 1); //low - beeppinMode(GROUND_H, INPUT);pinMode(GROUND_H, INPUT_PULLUP);pinMode(WATER, INPUT);pinMode(WATER, INPUT_PULLUP);//WIFISerial.print("Connecting to ");Serial.println(ssid);WiFi.begin(ssid, password);//连接到网络while (WiFi.status() != WL_CONNECTED) {//等待网络连接成功delay(500);Serial.print(".");}Serial.println("");Serial.println("WiFi connected");Serial.print("IP address: ");Serial.println(WiFi.localIP());//打印模块IP//BH1750while (myBH1750.begin() != true)               {Serial.println(F("ROHM BH1750FVI is not present")); //(F()) saves string to flash & keeps dynamic memory freedelay(5000);}Serial.println(F("ROHM BH1750FVI is present"));//PWM & MOTORESP32PWM::allocateTimer(0);ESP32PWM::allocateTimer(1);ESP32PWM::allocateTimer(2);ESP32PWM::allocateTimer(3);myservo.setPeriodHertz(50);// Standard 50hz servomyservo.attach(servoPin, 500, 2400);
}void loop(void)
{byte i;byte present = 0;byte type_s;byte data[12];byte addr[8];float celsius, fahrenheit;//DS18B20if ( !ds.search(addr)) {ds.reset_search();delay(250);return;}if (OneWire::crc8(addr, 7) != addr[7]) {Serial.println("CRC is not valid!");return;}switch (addr[0]) {case 0x10://Serial.println("  Chip = DS18S20");  // or old DS1820type_s = 1;break;case 0x28://Serial.println("  Chip = DS18B20");type_s = 0;break;case 0x22:// Serial.println("  Chip = DS1822");type_s = 0;break;default:Serial.println("Device is not a DS18x20 family device.");return;} ds.reset();ds.select(addr);ds.write(0x44, 1);        // start conversion, with parasite power on at the end  delay(1000);     // maybe 750ms is enough, maybe notpresent = ds.reset();ds.select(addr);    ds.write(0xBE);         // Read Scratchpadfor ( i = 0; i < 9; i++) {           // we need 9 bytesdata[i] = ds.read();}int16_t raw = (data[1] << 8) | data[0];if (type_s) {raw = raw << 3; // 9 bit resolution defaultif (data[7] == 0x10) {// "count remain" gives full 12 bit resolutionraw = (raw & 0xFFF0) + 12 - data[6];}} else {byte cfg = (data[4] & 0x60);// at lower res, the low bits are undefined, so let's zero themif (cfg == 0x00) raw = raw & ~7;  // 9 bit resolution, 93.75 mselse if (cfg == 0x20) raw = raw & ~3; // 10 bit res, 187.5 mselse if (cfg == 0x40) raw = raw & ~1; // 11 bit res, 375 ms default is 12 bit resolution, 750 ms conversion time}celsius = (float)raw / 16.0;fahrenheit = celsius * 1.8 + 32.0;tank_temp = celsius;//DHT11house_h = dht.readHumidity();house_t = dht.readTemperature();if (isnan(house_h) || isnan(house_t)){Serial.println("Failed to read from DHT sensor!");return;}//BH1750light_value = myBH1750.readLightLevel();//logicground_h = 1-digitalRead(GROUND_H);water = 1-digitalRead(WATER);Serial.printf("GROUND-WATER: %d,%d",ground_h,water);Serial.println("//");digitalWrite(WATER_MOTOR, 1-ground_h); //HIGH-OPEN ground h low  open water motordigitalWrite(O2_MOTOR, water);//no useif(light_value >= 50)pwm_value = 180;else if(light_value <= 20)pwm_value = 0;if((tank_temp>30) || (tank_temp<20)){digitalWrite(BEEP, 0); //low - beep}else digitalWrite(BEEP, 1);//MOTOR myservo.write(pwm_value);                  // set the servo position according to the scaled value  (value between 0 and 180)//LEDdigitalWrite(LED_BUILTIN, HIGH);delay(1000);digitalWrite(LED_BUILTIN, LOW);delay(1000);//OLEDu8g2.setFont(u8g2_font_unifont_t_chinese2);u8g2.clearBuffer(); //清除模组的缓存u8g2.setFont(u8g2_font_ncenB08_tr); // 设置字体u8g2.setCursor(0, 15);u8g2.printf("TEMP-WATER: %.2fC", tank_temp);u8g2.setCursor(0, 30);u8g2.printf("GOUND:%d WATER:%d",ground_h, water);u8g2.setCursor(0, 45);u8g2.printf("HOUSE-TH: %.1fC,%.1f%",house_t,house_h); u8g2.setCursor(0, 60);u8g2.printf("LIGHT-LUX: %.2fLux",light_value);u8g2.sendBuffer(); // 将缓存输出到屏幕
}

5、部分参考资料

#硬件原理图资料见资料包（下）

6、注意事项

#代码暂不包含nodemcu代码

完整可运行项目地址

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技能梳理6@NODEMCU+BH1750+DS18B20+DHT11+PWM电机+ONENET

1、项目简介

2、实现逻辑

3、应用场景

4、核心代码梳理

5、部分参考资料

6、注意事项

完整可运行项目地址

技能梳理6@NODEMCU+BH1750+DS18B20+DHT11+PWM电机+ONENET相关推荐

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