Contactless Thermometer

Launched on July 12, 2021

Contactless Thermometer

Overview 👀

A contactless thermometer, as its name suggests, is a device used to measure the body's temperature by bringing the body closer to the thermometer, up to a distance of three meters.

Objective 🎯

Making this thermometer is done for two reasons: first, to obtain an A in Kuliah Kerja Nyata (KKN), and second, to utilize it at the village hall as a first-stage screening device for COVID-19.

Technologies Used 🧑‍💻

The Arduino microcontroller was used to create this thermometer, which is popular among IoT (internet of things) activists.

The specifics of the technology applied in this thermometer are as follows:

  • Gy-906
  • Ultrasonic hc-sr04
  • Buzzer
  • LCD Display 1602 16x2

Features ✅

gy-906 temperature sensor

The primary goal in creating this device was to measure body temperature. Therefore, a temperature sensor that can be detected in real time is essential. Sadly, this sensor still detects objects even when nobody is in front of it.

Feature 1

Ultrasonic hc-sr04 sensor

An ultrasonic sensor, hc-sr04, is needed to solve the problem of a temperature sensor that still detects objects even when nobody is in front of it. This sensor works by detecting movement at a maximum distance of 3 meters.

This sensor is required to reduce needless detection, so the gy-906 temperature sensor will only turn on when it detects an object at a distance of no more than three meters.

Feature 2

Notification Sounds

When motion is detected, a buzzer plays a sound to let the user know that the device has caught up the movement.

Feature 3

Display temperature data

Users may determine whether their body temperature is normal or not by looking at the data shown on the 1602 16x2 LCD.

Feature 4

Documentation 📽️

Coding process

The Arduino IDE is used to write code in the C programming language. This software can make writing easier because the code can be directly uploaded to the Arduino board.

Put Arduino on the case

It would be nice if a case was put to hide the many cables so that the device looked clean.

Results 🚀

The following are the results of the device that has been made and installed at the village hall in the Sidoarjo area.

What I Learn 💪

In the process of making this device, I learned a lot about cable wiring and how to use it. I'm also learning how to code on arduino.