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

Sri Depi Lusianti

1 Feb 202306:19

Summary

TLDRThis 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.

Outlines

00:00

🛠️ Introduction to the Automatic Fan Control System Project

The video script introduces a project on an automatic fan control system using Arduino Uno and a temperature sensor, the DHT 11. The presenters, Poppy Musyarofah and Sridevi Lusianti, provide their student identification numbers and begin by listing the required materials, including an Arduino Uno, an LCD display with I2C, a 1-channel relay, the DHT 11 temperature sensor, jumper cables, a 12V fan, a 9V adapter, and a USB cable for PC connection. They then proceed to demonstrate the wiring process for the LCD, temperature sensor, relay, fan, and adapter, ensuring secure connections to the Arduino Uno. The script also mentions the coding process, starting with importing the necessary libraries and setting up the pins for the fan, power, and temperature sensor on the Arduino Uno.

05:01

🔧 Demonstration of the Automatic Fan Control System

In this paragraph, the script describes the functionality of the automatic fan control system. The fan will turn on when the temperature exceeds 30 degrees Celsius and turn off when it falls below this threshold. The script details the setup process, including connecting the USB to the PC to power the LCD, which displays the current temperature and indicates that the fan is set to operate automatically. The video then demonstrates the system's response to temperature changes by heating the DHT 11 sensor to activate the fan and cooling it to observe the fan turning off. The script concludes with an explanation of how to test the system's functionality by using a cold object to lower the temperature and verify if the fan turns off accordingly.

Mindmap

Keywords

💡Arduino Uno

Arduino Uno is an open-source microcontroller board based on the ATmega328P microcontroller. It is widely used for building electronics projects due to its versatility and ease of use. In the context of the video, it serves as the central processing unit for the automatic fan control system, handling inputs from the temperature sensor and controlling the fan and LCD display.

💡LCD with I2C

LCD with I2C refers to a Liquid Crystal Display module that communicates with the microcontroller using the Inter-Integrated Circuit (I2C) protocol. This protocol allows for multiple devices to be connected to the same two wires, simplifying the wiring and interfacing. In the video, it is used to display the temperature and the status of the fan.

💡Relay 1 channel

A 1 channel relay is an electrical switch that can be controlled by a low voltage signal, typically from a microcontroller like the Arduino Uno. It is used to control high voltage or high current devices, such as the fan in this project. The relay is connected to the Arduino and is responsible for turning the fan on or off based on the temperature readings.

💡DHT11

DHT11 is a type of temperature and humidity sensor module that can provide both temperature and humidity readings. In the video, the DHT11 is used to measure the ambient temperature, which is then used by the Arduino to decide whether to turn the fan on or off.

💡Jumper cables

Jumper cables are used to connect various components in an electronic circuit. They come in male-to-male, female-to-female, and male-to-female varieties. In the script, jumper cables are essential for connecting the LCD, DHT11 sensor, relay, and fan to the Arduino Uno.

💡Kipas Angin 12V

Kipas Angin 12V refers to a 12-volt electric fan. In the context of the video, it is the device that is controlled by the relay to turn on or off based on the temperature readings from the DHT11 sensor. The fan is part of the automatic temperature control system.

💡Adaptor 9V

An adaptor 9V is a power supply device that converts AC voltage to a stable DC voltage of 9 volts. It is used to power the Arduino Uno and other components of the system. In the video, it is mentioned as part of the setup for the automatic fan control system.

💡Cable USB

A USB cable is used to connect the Arduino Uno to a PC for programming and uploading the code that controls the fan and LCD display. It is a standard interface for data transfer and power supply in many electronic devices.

💡Coding

Coding in this context refers to writing the software program that runs on the Arduino Uno, which controls the fan and LCD based on the temperature readings. The script mentions importing libraries and setting up the pins for the temperature sensor, fan, and LCD, which are essential steps in the coding process.

💡Automatic Fan Control

Automatic Fan Control is the main theme of the video, where the system is designed to turn the fan on when the temperature exceeds a certain threshold (e.g., 30 degrees) and turn it off when the temperature is below this threshold. The system uses a combination of the Arduino Uno, DHT11 sensor, relay, and fan to achieve this functionality.

💡Temperature Threshold

A temperature threshold is a specific temperature value that triggers a response from the system. In the video, the threshold is set at 30 degrees Celsius. If the temperature measured by the DHT11 sensor is above this threshold, the fan is activated to cool down the environment.

Highlights

Introduction of a project on an automatic fan control system based on Arduino Uno and DHT11 temperature sensor.

Presenters are Poppy Musyarofah with NIM 4320706190143 and Sridevi Lusianti with NIM 432076190170.

Arduino Uno is used as the microcontroller in the project.

An LCD with i2c is included in the project setup.

A 1-channel relay is used for the fan control.

DHT11 temperature sensor is employed for temperature measurement.

Jumper cables are necessary for connecting the components.

A 12V fan and a 9V adapter are part of the hardware setup.

A USB cable is used to connect the system to a PC.

Ground connections are made between the LCD and Arduino Uno.

5V connection is established from the Arduino Uno to the LCD.

SDA and SCL pins are connected between the LCD and Arduino Uno.

Ground and VCC connections are made for the DHT11 temperature sensor.

Relay connections are established for the fan control.

Fan and adapter connections are detailed for power supply.

Coding involves importing necessary libraries for the project.

Fan control logic is based on temperature readings from the DHT11 sensor.

Fan turns on when temperature exceeds 30 degrees Celsius.

Fan turns off when temperature is below 30 degrees Celsius.

Demonstration of the system's functionality with temperature adjustments.