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Monday, March 27, 2017

Tag: 555

Clap switch using 3 different modules

Description: In this clap switch we use three different modules given below. It is necessary to make these three modules in order to make...

Toggle switch using 555

Description: The following circuit works as a toggle switch. The circuit has two stable states, ON and OFF. Once it is ON, it remains ON...

Monostable module

Description: In the monostable mode, the 555 works as a "one-shot" pulse generator.  Other applications of monostable mode include timers, pulse-width modulation (PWM), missing pulse detection,...

FREE 555 timer simulators for electronics beginners

All of us know that NE555(or other versions) is a versatile IC for building big and small projects. Recently, I found some free simulators...

Combine two dark sensors and make an easy clap switch

CHECK RECENTLY PUBLISHED "CLAP SWITCH WITH TOGGLE FEATURE".  It is always good to break a big project into small modules and test them separately. After...

Light activated police siren using 555 timer and light dependent resistor(LDR)

Here's a simple light activated police siren using light dependent resistor and NE555 timer. Before you make this project, I would recommend you to...

Blinker using arduino and NE555 timer IC

Make blinker using arduino as well as NE555 timer IC.

Clap switch

Simplest and easiest way to make clap switch.

Light operated switch

Light operated switch works with NE555 timer and light dependent resistor. It uses relay and toggle switch idea for operation.

Up Counter

An up counter simply counts from 0 to 9. We can use this circuit to make digital object counter. This circuit can also be used to make a digital clock.

Remote operated musical bell

Remote operated musical bell can be made combining the following circuits. a) Remote tester b) Basic RC circuit c) Simple Musical bell When a remote is pressed, the circuit plays a music. a) Remote tester

Mode of NE555- Astable

This circuit has been configured in Astable mode. The output pulses are determined by the values of resistors R1, R2 and the timing capacitor C1. The formula for the frequency of pulses is: f= 1.44/[(R1+2R2)*C1].

Sound generator and Musical toy organ

One of the main objectives of LDR Engineering projects is to make students capable of developing their own logic for making devices. Here is an example that tells how LDR Engineering helps in developing ideas.

Mode of NE555- Astable

This circuit has been configured in Astable mode. The output pulses are determined by the values of resistors R1, R2 and the timing capacitor C1. The formula for the frequency of pulses is: f= 1.44/[(R1+2R2)*C1]. The high and low time of each pulse can also be calculated.

Mode of NE555- Monostable

Monostable mode of operation Monostable mode of operation of 555 IC can be explained using a simple touch sensitive circuit. Here, timing constant (T) of monostable timer= 1.1*R1*C1. The following circuit has been configured in monostable mode. A monostable circuit produces a single pulse(for a certain duration determined by the Timing Constant(T)=1.1*R1*C1) when triggered at pin 2.

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