1/* 定义DHT11对象类型 */2typedefstructDht11Object{3floattemperature;//温度值4floathumidity;//湿度值56uint8_t(*SetPinOutValue)(DhtPinValueType setValue);//设置DHT11引脚的输出值7uint8_t(*ReadPinBit)(void);//读取引脚电平8void(*SetPinDirection)(DHT11IOModeType mode);//设置引脚的输入输出方...
DHT11 Pinout Configuration You can buyDHT11 sensor modulefrom here. DHT11 Specifications Operating Voltage: 3.5V to 5.5V Operating current: 0.3mA (measuring) 60uA (standby) Output: Serial data Temperature Range: 0°C to 50°C Humidity Range: 20% to 90% Resolution: Temperature and Humidity b...
1/*定义DHT11对象类型*/2typedefstructDht11Object {3floattemperature;//温度值4floathumidity;//湿度值56uint8_t (*SetPinOutValue)(DhtPinValueType setValue);//设置DHT11引脚的输出值7uint8_t (*ReadPinBit)(void);//读取引脚电平8void(*SetPinDirection)(DHT11IOModeType mode);//设置引脚的输入输出...
4 dht->SetPinMode(DHT11_Out); //设置为输出方式 5 dht->SetPinOutValue(DHT11_Reset); //将引脚点位拉低 6 dht->Delayms(20); //拉低至少18ms 7 dht->SetPinOutValue(DHT11_Set); //拉高 8 dht->Delayus(30); //主机拉高20至40us 9 } 1. 2. 3. 4. 5. 6. 7. 8. 9. DHT11传感...
DHT11 Pinout DHT22 Pinout DHT22 Pinout Where to use DHT11 and DHT22 Sensors TheDHT11andDHT22are commonly used Temperature and humidity sensors. The sensor comes with a dedicated NTC to measure temperature and an8-bit microcontrollerto output the values of temperature and humidity as serial data...
uint8_t (*SetPinOutValue)(DhtPinValueType setValue);//设置DHT11引脚的输出值 uint8_t (*ReadPinBit)(void);//读取引脚电平 void (*SetPinDirection)(DHT11IOModeType mode);//设置引脚的输入输出方向 void (*Delayms)(volatile uint32_t nTime); /*实现ms延时操作*/ ...
We have two versions of the DHT sensor, they look a bit similar and have the same pinout, but have different characteristics. Here are the specs: DHT11 Ultra low cost 3 to 5V power and I/O 2.5mA max current use during conversion (while requesting data) ...
Pinout of both DHT11 and DHT22 sensors are the same as you can see in the picture. The first pin for both sensors is a power supply(Vcc) pin. Connect it with the 3.3-volt pin of ESP32. Data out is the pin through which we get temperature and humidity samples from the DHT sensor...
Learn how to program Arduino to read temperature and humidity from DHT11 sensor and module. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with Arduino. Find this a
This tutorial shows how to use the DHT11 and DHT22 temperature and humidity sensors with the ESP32 using Arduino IDE. We’ll go through a quick introduction to these sensors, pinout, wiring diagram, and finally the Arduino sketch.Learn how to display temperature and humidity readings on a ...