Electronics Projects

Build Laser Security System using LDR Sensor and BC547

Harsh Sehgal 0 Comments

If you want to make your surroundings safer then it comes to security. What if you can protect your house or garage or any important belongings with the help of a laser system. Whenever the laser got interrupted, it will sound an alarm to make you alert that someone has invaded. So, In this...

How to Control Servo Motor with Arduino Uno?

Harsh Sehgal 0 Comments

Let’s take a look into a simple interfacing project this time. This is actuator interfacing with Arduino Uno and the actuator being servo motor, specifically SG90 servo motor. SG90 is a lightweight (just 9g) and tiny servo motor which has quite good output toque. We can use Arduino IDE to code this servo and...

Simple Clap Switch Circuit using CD4017 IC

Harsh Sehgal 0 Comments

In this tutorial, we are going to make Clap Operated Switch using CD4017 Decade counter IC. It consists of a condenser microphone that senses the clap sound and gives a clock pulse to the Decade counter IC which in response turns the ON or OFF the relay. With the first clap IC gives the HIGH...

Automatic Power cut-off Circuit using 555 Timer IC

Harsh Sehgal 0 Comments

In this tutorial, we are going to make an Automatic power cut-off circuit with the help of a 555 timer IC and other components. This circuit automatically cut-off the power after some prescribed time which can be varied with the help of a potentiometer. There are large applications of the circuit, for example, if we want to...

Build Touch Door Bell Alarm Circuit using TTP226 Touch Sensor Module and Musical IC

Harsh Sehgal 0 Comments

In this tutorial, we are going to make a Touch Door Bell Alarm Circuit which will sound a melody with just a touch of a finger. This project uses a TTP223 capacitive touch sensor module which gives input to the musical IC that is amplified by  NPN transistor and hence melody is played on the speaker. Let’s make this Project.   BC547...

Build Contactless AC Voltage Detection Circuit

Harsh Sehgal 0 Comments

In this tutorial, we are going to make a circuit called a Contactless AC Detection circuit which will detect the presence of AC voltage when the antenna of the circuit is brought closer to the wire which is having a  supply. If the wire carries a current, it will sound like a buzzer with...

Distance Measuring with LED Notifier using HC-SR04 Ultrasonic Sensor and Arduino

Harsh Sehgal 0 Comments

In this tutorial, we are going to learn how to use ultrasonic sensor HC-SR04 interfacing with Arduino and measure the distance which will be notified by 7 LEDs. As we move closer to the sensor the  LED will glow consecutively and vice-versa.   HC-SR04 Ultrasonic Sensor Pinout The sensor has 4 pins. 5volts is...