Electronics Projects

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...

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...

A robotic arm is a type of mechanical arm, usually programmable, that is designed to move materials, parts, tools, or specialized devices through various types of programmed motions for the purpose of manufacturing, assembly, testing, inspection, and other tasks. Robotic arms are widely used in a variety of industries, including automotive, aerospace, electronics, food...

In this tutorial, we are going to make a light-chasing robot that moves toward areas of bright light. We will be using photoresistors to determine the brightness of the light. For a better understanding, have a look at the line following robot, surveillance robot car, obstacle-avoiding robot that we previously created. A photoresistor, or photocell, is a light-dependent resistor...