void loop() { TempAndHumidity data = dhtSensor.getTempAndHumidity();//接受来自传感器的温度湿度数据,存入data变量 Serial.println("Temp: " + String(data.temperature, 2) + "°C");//开始通过串口显示变量的温度信息 Serial.println("Humidity: " + String(data.humidity, 1) + "%");//显示湿度...
OUTPUT);//digitalWrite(LED_BUILTIN, LOW);Blinker.begin(auth,ssid,pswd);Blinker.attachHeartbeat(heartbeat);Blinker.attachDataStorage(dataStorage);BlinkerMIOT.attachQuery(miotQuery);dht.begin();}voidloop(){Blinker.run();inth=dht.readHumidity();intt=dht.readTemperature(...
In this article, I will show you how to use the LM35 temperature sensor with the ESP32 microcontroller. The LM35 series are precise temperature sensors that give you a voltage output directly proportional to the Centigrade temperature that it senses. Monitoring temperature is critical in many diffe...
Schematic Repository Ayarafun/LamLoei Node32S ESP-WROOM-32 FTDI FT231XS Development board with USB-to-UART, EN & BOOT buttons, LED (GPIO2), battery connector & charging circuit, and on the Plus edition, a humidity/temperature sensor. Board underside depicts an elephant. Pinout Photos Node...
#include"EspMQTTClient.h"#include<ArduinoJson.h>#include<TimeLib.h>#definetempPin 34// https://esp32io.com/tutorials/esp32-lm35-temperature-sensor#defineADC_VREF_mV 3300.0// in millivolt#defineADC_RESOLUTION 4096.0// 定义温度 https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw...
}voidloop(){// 读取温湿度传感器数据floattemperature = dht.readTemperature();floathumidity = dht.readHumidity();// 发送数据到服务器WiFiClient client;if(!client.connect("your_server_ip",80)) { Serial.println("Connection failed");return; ...
DS18B20 temperature sensor(we’re using 3 sensors in this example) 4.7k Ohm resistor Jumper wires Breadboard You can use the preceding links or go directly toMakerAdvisor.com/toolsto find all the parts for your projects at the best price!
首先使用mqtt注册设备: 温度传感器配置(包括设备信息){"unique_id":"esp32_temperature_sensor1","name":"温度传感器1","state_topic":"home/esp32/temperature1","unit_of_measurement":"°C","device_class":"temperature","value_template":"{{value_json.temperature}}","device":{"identifiers":["esp...
And with simple peripheral circuit, it performs stably even in harsh environments in the measuring range of -40 – +85 Celsius. This sensor can be widely used for measuring the environmental temperature and humidity of home electronic equipment, the temperature and humidity of automobiles and so ...
Additionally, the ESP32 comes with touch-sensitive pins that can be used to wake up the ESP32 from deep sleep, a built-in hall effect sensor, and a built-in temperature sensor (recent versions of the ESP32 don’t come with a built-in temperature sensor anymore). Both boards are cheap...