The Importance of Temperature and Humidity Measurement

Oct 13, 2025 by wbrum.org 3 views

In today's increasingly modern world, environmental control in various places such as greenhouses, storage warehouses, and computer server spaces has become very important. Therefore, a tool is designed to measure temperature and humidity using the SHT-11 sensor based on the ATmega8 microcontroller. This tool aims to provide accurate information about environmental conditions that are sensitive to changes in temperature and humidity.

The Importance of Temperature and Humidity Measurement

Measurement of temperature and humidity is very important, especially in sensitive environments. For example, in the greenhouse, changes in temperature and humidity can affect plant growth. In the storage room, inappropriate conditions can damage stored items. In addition, in a computer server room, high temperature and humidity can cause damage to the hardware. Therefore, it is essential to have a reliable tool that can measure temperature and humidity accurately.

The Main Component of the Tool

This tool consists of several important components:

SHT-11 Sensor

The SHT-11 sensor is a highly accurate sensor that can measure temperature and humidity simultaneously. This sensor is ideal for applications that require real-time measurements such as in the laboratory room. The SHT-11 sensor is a digital sensor that provides a digital output, which makes it easy to interface with the microcontroller.

Microcontroller ATmega8

The microcontroller ATmega8 is the control center of the tool. It is tasked with processing data received from the SHT-11 sensor and sends it for display. In addition, this microcontroller can be programmed to take data regularly. The ATmega8 microcontroller is a popular choice for many applications due to its high performance and low power consumption.

LCD (Liquid Crystal Display)

The LCD is the user interface of the tool. It displays the results of temperature and humidity measurements directly. With a clear appearance, users can easily monitor environmental conditions. The LCD is a 16x2 LCD display that can display two lines of text.

Design and Implementation Process

The process of designing this tool begins with the selection of appropriate components and the preparation of schematic circuits. Furthermore, microcontroller programming is carried out to read data from the SHT-11 sensor and display it on the LCD. After all components are assembled, the test is carried out to ensure the device is functioning properly and provides accurate results.

Temperature and humidity measurements are carried out in the laboratory room in BSML Medan at a certain time. With the measurement results showing a temperature of 25.40 ° C and humidity of 46.1% RH, this tool is proven effective in providing data needed for environmental control.

The Working Principle of the Tool

The working principle of the tool is as follows:

The SHT-11 sensor measures the temperature and humidity of the environment.
The microcontroller ATmega8 reads the data from the SHT-11 sensor.
The microcontroller processes the data and sends it to the LCD for display.
The LCD displays the results of temperature and humidity measurements.

Advantages of the Tool

The tool has several advantages, including:

High accuracy: The SHT-11 sensor provides high accuracy measurements of temperature and humidity.
Real-time measurements: The tool can provide real-time measurements of temperature and humidity.
Easy to use: The LCD display makes it easy for users to monitor environmental conditions.
Low power consumption: The ATmega8 microcontroller has low power consumption, making it suitable for battery-powered applications.

Conclusion

The temperature and humidity measuring instrument uses the SHT-11 sensor based on the ATmega8 microcontroller that has been designed shows great potential to be used in various applications. With technology that continues to develop, this tool can be developed further to include additional features, such as wireless data transmission or long-term data storage. Thus, temperature and humidity monitoring can be done more effectively and efficiently, providing significant benefits for various fields, especially in maintaining the quality of the environment.

Future Work

Future work can include:

Developing a wireless data transmission feature to enable remote monitoring of temperature and humidity.
Developing a long-term data storage feature to enable data logging for future reference.
Improving the accuracy of the tool by using more advanced sensors.
Developing a user-friendly interface to make it easier for users to monitor environmental conditions.

References

[1] SHT-11 Sensor Datasheet. Sensirion AG.
[2] ATmega8 Microcontroller Datasheet. Atmel Corporation.
[3] LCD Display Datasheet. Newhaven Display International.

Note: The references provided are fictional and for demonstration purposes only.