Membuat Kipas Otomatis Berdasarkan Suhu Berbasis Arduino || Sensor Suhu DHT-11

Summary

This video showcases a project on an automatic fan control system using Arduino Uno and a DHT 11 temperature sensor. Presenters Poppy Musyarofah and Sridevi Lusianti demonstrate the setup process, including connections of an LCD, relay, and fan to the Arduino board. The system is programmed to turn the fan on when the temperature exceeds 30 degrees Celsius and off when it's below. The video guides through the hardware assembly and coding steps, concluding with a test of the system's functionality in response to temperature changes.

Takeaways

• 📝 The video presents a project on an automatic fan control system based on Arduino Uno and a temperature sensor (DHT 11).
• 🔧 The main components required for the project include an Arduino Uno, an LCD with I2C, a 1-channel relay, a DHT 11 temperature sensor, jumper cables, a 12V fan, a 9V adapter, and a USB cable for PC connection.
• 🔌 The setup involves connecting the ground of the LCD to the Arduino's ground, the 5V of the LCD to the Arduino's 5V, and the SDA and SCL pins of the LCD to the A4 and A5 pins on the Arduino Uno, respectively.
• 🔩 The DHT 11 temperature sensor is connected to the Arduino Uno with its ground to the Arduino's ground and its VCC to the Arduino's 5V.
• 🔄 The 1-channel relay is connected to pin 5 on the Arduino Uno, with its ground to the Arduino's ground and VCC to the Arduino's 5V.
• 🌡️ The fan and the 9V adapter are connected such that the black (negative) wire of the fan is connected to the black (negative) wire of the adapter, and the red (positive) wire of the fan is connected to the COM terminal of the relay.
• 💻 The coding process involves importing the necessary libraries and setting up pins for the fan, temperature sensor, and power supply.
• 📈 The fan is programmed to turn on when the temperature exceeds 30 degrees Celsius and to turn off when it is below 30 degrees Celsius.
• 🖥️ The LCD display is used to show the temperature and indicate whether the fan is on or off, with an initial display of 29 degrees Celsius.
• 🔧 The demonstration includes heating the DHT 11 sensor to activate the fan and then cooling it to see the fan turn off as the temperature drops below the threshold.
• 🔬 The project serves as a practical example of using Arduino for home automation and temperature control.

Q & A

What is the main topic of the video?

The main topic of the video is about showcasing the results of a project involving an automatic fan control system based on Arduino Uno and a temperature sensor (DHT 11).

Who are the presenters of the video?

The presenters of the video are Poppy musyarofah with NIM 4320706190143 and Sridevi lusianti with NIM 432076190170.

What is the purpose of using an Arduino Uno in this project?

The Arduino Uno is used as a microcontroller in the project to control the fan based on the temperature readings from the DHT 11 sensor.

What is the role of the LCD in the project setup?

The LCD is used to display the temperature and indicate whether the fan is on or off automatically based on the temperature readings.

What is the function of the 1-channel relay in the project?

The 1-channel relay is used to control the power supply to the fan, turning it on or off based on the temperature conditions set in the code.

What type of sensor is used to measure temperature in this project?

A DHT 11 sensor is used to measure the temperature in the project.

What is the significance of the jumper cables in the project setup?

Jumper cables are used to connect various components such as the LCD, sensor, relay, and fan to the Arduino Uno.

What is the voltage of the fan used in the project?

A 12V fan is used in the project.

How is the fan connected to the power source in the project?

The fan is connected to a 9V adapter which is then connected to the COM port of the relay to control the power supply.

What is the temperature threshold set in the code for the fan to turn on?

The fan turns on when the temperature goes above 30 degrees Celsius.

How can the fan be turned off according to the project setup?

The fan can be turned off by cooling the DHT 11 sensor below 30 degrees Celsius, which will trigger the relay to disconnect the power to the fan.