Electronics Projects

A magnetic pole detector is a device used to detect magnetic fields and determine polarity. A Hall effect sensor can detect a magnetic field by generating a voltage output proportional to its strength. A detector can be made by connecting the sensor to the  power source and voltmeter, and observing changes in voltage output...

In this project, we will building a music player using an Arduino Nano and SD card reader. The music player will be capable of playing MP3 files stored on an SD card in wave form and we will have basic controls for play, pause, forward and backward. The project is a great introduction to...

The NE555 timer is a versatile electronic device used in circuits to create timing functions. In this project, we will use it to simulate a traffic light using LEDs, with the circuit consisting of three LEDs representing the colors of the traffic light: red, yellow, and green. The NE555 timer will be used to...

A 433MHz transmitter and receiver pair uses Amplitude Shift Keying (ASK) modulation to transmit and receive data wirelessly. The transmitter modulates a 433MHz carrier wave with the data signal using an ASK modulator, and transmits the modulated signal through an antenna. The receiver picks up the transmitted signal with an antenna, filters out unwanted...

In this article, we will learn about how we send temperature and humidity data from a DHT22 sensor and displays it on an LCD screen using an Arduino board. The LCD screen is initialized with its pins and dimensions, and the temperature is printed in Celsius or Fahrenheit depending on the value of a boolean...

This project is an Arduino-based heart pulse sensor that uses an OLED display to show the user's pulse rate. The program uses an analog heart rate sensor connected to pin A0 of the Arduino board. The code reads the sensor values and maps them to a range between 0 and 45 to create a...

There are numerous practical uses for infrared (IR) communication, which is a commonly utilised and simple wireless technology. The most common applications that use infrared communication in daily life are TV/video remote controls, motion sensors, infrared thermometers, air conditioning remote controls, and all other applications. Many Arduino projects make use of IR communication. We...