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ESP32 Pinouts

Fire Alarm Circuit is a simple circuit that detects the fire and activates the Siren Sound or Buzzer Fire Alarm Circuits are very important devices

Metal detector is a very common device that is used for checking persons luggage or bags in shopping malls hotels cinema halls etc to ensure

Have you ever tried to design a variable regulated power supply This article describes you how to design a variable power supply circuit Till now

A Mobile Jammer Circuit or a Cell Phone Jammer Circuit is an instrument or device that can prevent the reception of signals by Mobile Phones

In the previous post we have seen the circuit diagram of 9v battery charger circuit using LM311 and SCR In this post let us see

A motion detector circuit typically employs a passive infrared PIR sensor or an ultrasonic sensor to detect movement in its vicinity When motion is detected

Introduction In this project we will see a PWM based LED Dimmer using 555 Timer IC The main principle of this circuit is to generate

Introduction In this project I will show you how to build a simple Light Activated Switch Circuit using LDR Using this circuit an electrical device

We usually turn ON the lights in our houses and offices manually We need to turn ON the lights only when it is dark So

Automatic Railway Gate Control System is a simple but very useful project which help is automatically opening and closing the railway gate upon detecting arrival