The following image shows the circuit diagram for interfacing the DHT11 sensor module with Arduino. Connections are pretty simple and only require three wires. Connect the VCC and GND of the module to ...

Circuit Diagram The circuit involves the following connections: • DHT11 Sensor: o VCC to 5V on the Arduino. o GND to GND on the Arduino. o DATA to a digital pin (e.g., Pin 2). • An optional pull-up ...

Photoresistor sensor will detect the amount of light present and turn on the LED if the amount of light is less than the threshold value Similarly, DHT11 sensor will sense the temperature around, and ...

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 ...