最近对植物的研究， 赶上冬天，阳台采光不好。然后买了水族加热棒(安全) 植物补光灯。 但作为入门科技宅，当然不能盲操一切。esp32走起~~
设备 esp32板子1 光照传感器1 dht11 温湿度传感器1
esp32牛就牛在有wifi 通过http将数据发送到树莓派搭服务器
代码到处乱抄 晚点有空format下
#include <Wire.h> //IIC库 #include <math.h> #include "SSD1306.h" //显示屏 #include "DHT.h" ///温湿传感器 #include <WiFi.h> #define DHTPIN 17 // 引脚定义 #define DHTTYPE DHT22 DHT dht(DHTPIN, DHTTYPE); int BH1750address = 0x23./芯片地址为16位23 byte buff[2]; // #define SDA 21 #define SCL 22 SSD1306 display(0x3c, SDA, SCL); int BH1750_Read(int address) { int i = 0; Wire.beginTransmission(address); Wire.requestFrom(address, 2); while (Wire.available()) // { buff[i] = Wire.read(); // read one byte i ; } Wire.endTransmission(); return i; } void BH1750_Init(int address) { Wire.beginTransmission(address); Wire.write(0x10);//1lx reolution 120ms Wire.endTransmission(); } const char* ssid = "firework"; const char* password = "wifi密码"; const char* host = "192.168.1.50"; const char* streamId = "..."; const char* privateKey = "..."; void setup() { Wire.begin(); Serial.begin(9600); display.init(); dht.begin(); // wifi Serial.println(); Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); Serial.println("IP address: "); Serial.println(WiFi.localIP()); //wifi } int value = 0; void loop() { delay(2000); // 设置间隔时间为2000毫秒 int i; uint16_t val = 0; // float h = dht.readHumidity(); float t = dht.readTemperature(); float f = dht.readTemperature(true); if (isnan(h) || isnan(t) || isnan(f)) { Serial.println("没有从DHT在传感器上获取数据！"); return; } // 计算华氏温度 (默认) // float hif = dht.computeHeatIndex(f, h); // 计算摄氏温度 (Fahreheit = false) float hic = dht.computeHeatIndex(t, h, false); BH1750_Init(BH1750address); delay(1000); if (2 == BH1750_Read(BH1750address)) { val = ((buff[0] << 8) | buff[1]) / 1.2; Serial.print(val, DEC); Serial.println("[lx]"); display.clear(); display.setFont(ArialMT_Plain_16); display.drawString(0, 0, "T:" (String)hic "C"); display.drawString(0, 20, "H:" (String)h "%"); display.drawString(0, 40, (String)val "lx"); display.display(); //http value; Serial.print("connecting to "); Serial.println(host); // Use WiFiClient class to create TCP connections WiFiClient client; const int httpPort = 8080; if (!client.connect(host, httpPort)) { Serial.println("connection failed"); return; } // We now create a URI for the request String url = ( "192.168.1.50:8080/sensor/in"); Serial.print("Requesting URL: "); Serial.println("GET " url " HTTP/1.0"); client.println("GET http://192.168.1.50:8080/sensor/in?inData=" (String)hic "," (String)h "," (String)val " HTTP/1.0"); client.println("Host: 192.168.1.50:8080"); client.println("Connection: close"); client.println(); unsigned long timeout = millis(); while (client.available() == 0) { if (millis() - timeout > 5000) { Serial.println(">>> Client Timeout !"); client.stop(); return; } } // Read all the lines of the reply from server and print them to Serial while (client.available()) { String line = client.readStringUntil('\r'); Serial.print(line); } //http } delay(150); }