Question

Which pin of arduino should be connected with the pin 3 of the 4-0 in DHT sensor

Answer 1

Answer:

According to my knowledge, there is no pin connected in the pin 3 which is known as NC pin in DHT sensor.

Explanation:

According to my knowledge, there are two types of DHT sensors are as follows as:

1. DHT11 → It is a type of sensor which cost is low and can predict the humidity and temperature of smaller range. It is slowly in nature.
2. DHT22 → It is a type of sensor which is very expensive and have more specialisation. It predict the humidity and temperature in large range.

Now, I want to share more about Arduino boards. According to my knowledge, there are many types of popular Arduino boards are NANO, UNO, MEGA and so on. These boards have a microcontroller which contain a resistor, microprocessor, RAM and ROM. There are four types of connectors or pins are as follows as:

1. Power Connector → It is mainly used for providing input power supply in VN pin in the Arduino board.
2. 5v Pins and 3.3v Pins → It is mainly used to provide the power supply of 5 volts in 5v pin and 3.3 volts in 3.3v pin in Arduino board.
3. Analog Pins → It is used to connect the analog sensors like pressure sensor in Arduino board. We can also used to connect digital input output device in this pins.
4. Digital input/output → It is used to connect the digital input device and digital output device in the Arduino board.

As per information, Arduino board is used here as a processing device just like a CPU of Computer or desktop. It is used in making robots and devices or program the hardware to make it specific just like a drone in which we use the Arduino and it's program.

There are four pins in the DHT sensors are as follows as:

1. VCC pin → It connects with the 5v pins for the power supply on the DHT sensor.
2. DATA pin → It connects with the digital input output pins in the Arduino board.
3. NC pin → It does not connected with any of the pins of the Arduino.
4. GND pin → It is also known as ground pin. The ground pin of the DHT sensor connects with the GND pin of the Arduino board.

As we know that, in DHT11 sensor, we are using a resistor of 4.7kΩ to 10kΩ.

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