How Arduino tone() actually behaves: square-wave frequency, optional duration, nonblocking calls, single-tone limits and timer/PWM interference to plan around.
Projects
Smart Knock Detecting Door Lock using Arduino
Security is a major concern in our day to day life, and digital locks have become an important part of these security systems. There are many types of security systems available to secure our place. Some examples are PIR based Security System, RFID based Security System, Digital Lock System, bio-matrix systems, Electronics Code lock. In […]
Fingerprint Based Biometric Voting Machine using Arduino
We all are quite familiar with Electronic Voting Machines, where your vote gets registered electronically and you don’t need to use ballot paper to vote in election. Today security is a major concern and it also needs to be ensured that someone can’t vote twice, so this problem can be solved by introducing Finger Print […]
Arduino based Angry Bird Game Controller using Flex Sensor and Potentiometer
It’s all started with a small game from the dark ages called “Mario”, right from the time of being a tiny little guy jumping on ducks to save my princess till being a masculine handsome Prince roaming in Persia (Prince of Persia) fighting against darkness to save my world behind I have been a great […]
Arduino Motion Detector using PIR Sensor
Detecting motions or movements has always been important in most projects. With the help of the PIR Sensor it has become very easy to detect human/animal movements. In this project we will learn how we can interface a PIR Sensor with a microcontroller like Arduino. We will interface an Arduino with PIR module and blink […]
DC-DC Buck Converter Circuit – How to Step Down DC Voltage
In this project we are going to make a Buck Converter Circuit using Arduino and N-Channel MOSFET with a maximum current capacity of 6 amps. We are going to step down 12v DC to any value between 0 and 10v DC. We can control the output voltage value by rotating the potentiometer. A buck converter […]
Arduino Based Digital Ammeter
Ammeter is used to measure current flow through any load or device. Here in this Arduino Ammeter, we will explain about measuring of current by using ohm’s law. It will be quite interesting as well as a good application of basic science that we studied in our school days. All of us are well known […]
Arduino DC Motor Speed and Direction Control using Relays and MOSFET
In this project we control direction and speed of a 24v high current motor using Arduino and two relays. No power switches are needed for this circuit, just two push buttons and in Potentiometer to control the direction and speed of DC Motor. One push button will rotate motor clockwise and other will rotate it counter […]
Automatic AC Temperature Controller using Arduino, DHT11 and IR Blaster
An AC (Air Conditioner) which was once considered to be a luxury item and was only to be found in big hotels, movie halls, restaurants etc… But, now almost everyone has a AC in our home to beat out the summer/winter and those who have it, worry about one common thing. That is their high […]
Interfacing Hall Effect Sensor with Arduino
Sensors have always been a vital component in any Project. These are the ones which convert the real real-time environmental data into digital/variable data so that it can be processed by electronics. There are many different types of sensors available in the market and you can select one based on your requirements. In this project […]