DHT11 Module Pinout. The DHT11 module has a total of 3 pins. In which two are for power and one is for communication. The pinout of a DHT11 Sensor module is as follows: DATA Data pin for 1-wire ...

This is the micro-controller and main processing unit of the system. It main controls input from the DHT11 sensor and Soil Moisture Sensor Module and displays on Serial Monitor. With the help of ...

Arduino board Vin pin is connected to battery, so the board generates 5V supply from onboard 7805 voltage regulator chip, which is given to DHT11 and 433MHz RF transmitter module (TX1). The sensor ...

Connect the output pin of the DHT11 sensor to the Pin2 and the IN pin of the relay module to the Pin3 of the Arduino. Power up the relay module through Arduino and connect the positive wire of the fan ...

The soil moisture sensor module , built around the LM393 comparator, gives an active-low (L) level output when the soil is dry (determined by a pre-setted threshold value). This digital output (wet ...

The DHT11 sensor senses humidity and temperature, and sends the information to digital pin 5 of Arduino MCU, as shown in Fig. 2. From Arduino MCU, humidity and temperature values are uploaded to the ...

Project using load cell(hx711) + dht11 sensor + arduino uno/nano/esp01 + hc05/06 bluetooth module Download zip for full code & cpp, header file ...

Another difference is that the module is connected to the Arduino board while the DHT11 sensor is not. So if you want to use a DHT11 sensor then you need to buy a DHT11 sensor module separately. Where ...