The fridge door alarm circuit is used to sense the status of the door opening OR closing. When the door opens for a long time this circuit triggers the 555 timer output and produces a … Read more
555 timer
What is Roulette? Roulette is a casino game named after the French word meaning little wheel. In this game, players may choose to place bets on either a single number, various groupings of numbers, or … Read more
LED Roulette Circuit using 555 timer IC | Roulette Game
What is a Timer? A Timer is a control device that outputs a signal at a preset time after an input signal is received. So in this tutorial, we are going to make a “Time … Read more
How to make Time Delay Circuit Using 555 Timer
The LED Chaser Circuit is basically a serial switch of LEDs in a continuous manner. ie In a short duration of time they are being switched & resulting in the formation of a chasing pattern. … Read more
LED Chaser Circuit using 555 & CD4017 – Electronics Projects
A Panic alarm is a simple electronic circuit that allows a person under stress to quickly & safely call for help in case of an emergency. Panic alarms also go by the names of duress … Read more
Simple Panic Alarm Circuit – Using NE555 Timer IC
In this electronic project, we are going to make a “School/College Quiz Buzzer Circuit” using 555 Timer IC. A quiz is an essential event in any institution to test the participants’ knowledge. To increase the … Read more
School/College Quiz Buzzer Circuit – Electronics Projects
Most of the time it happens our kid opens the door of the fridge and left it open So In this electronics project, we are going to make a “Fridge Door Alarm Circuit” using a … Read more
Fridge Door Alarm Circuit – Electronics Projects
This Electronic Project is about Automatic Street Light Controller Circuit Using Relays and LDR. We all may have seen streetlights on different streets. These lights provide light at night while they are off during the … Read more
Automatic Street Light Controller Circuit Using Relays and LDR
In Electronics, Digital Code Locks are very popular. These electronic code locks have uses for security purposes where you need to enter a particular ‘Code’ to open the Lock. These locks are mostly built using … Read more
555 Timer-Based Electronic Code Lock Circuit
We have seen vehicles turning indicators when they turn left or right and it looks cool and can be made without any microcontroller. So In this article, we will build a fancy car turning point … Read more
Bike/Car Signal Indicator Circuit using 555 Timer IC
PWM (Pulse Width Modulation) is an essential feature of today’s microcontroller because of the need to control many devices in almost every field of Electronics. 555 Timer IC is a highly convenient and versatile IC … Read more
Generate Pulse Width Modulation (PWM) Signal using 555 Timer IC
A Tone generator circuit usually uses the 555 timer IC to produce a range of sounds. Generally, Tone Generator circuits include triangle, square, sawtooth & sine wave generator circuits. Such periodic signals produce a variety … Read more
Simple Tone Generator Circuit Using NE555 Timer IC
Different alarm circuits are used commonly in day-to-day life as a security measure or to indicate any situation. Here in this tutorial, we are going to make a simple “Rain alarm circuit using timer IC … Read more
Rain Alarm Circuit using timer IC 555
In this example, a one-bit memory cell circuit is designed by using a 555 Timer IC. One Bit memory cell is also called a basic bistable element. All the embedded system uses memory for storing … Read more
One Bit Memory Cell using 555 Timer IC
The 555 timer IC was developed by Signetic Corporation in the year 1970. It is basically a monolithic timing circuit that produces accurate and highly stable time delays and it is used in many applications … Read more
555 Timer IC Operating Modes
The Panic Alarm allows a person under duress to quickly call for help in the event of an emergency. There are many types of panic alarm circuits available. Some have a single pushbutton and others … Read more