Saturday, April 20, 2019

Audio amplifier using LM386

Description: The LM386 is an audio amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count...

Dark sensor using transistor, phototransistor and photodiode

Description: This versatile dark sensor is made up of two transistors. It is a versatile module, because you can use it for testing several...

Digital Object Counter using LDR and digital IC

555 timer configured in monostable mode is a simple automatic dark sensor circuit that gives output when light falling on LDR is blocked.

How to use variable resistors

There are 3 pins/terminals on a preset. The maximum resistance that a preset can provide is written on it. If 100K is written on preset, it means that we can vary its resistance from 0 Ohm to 100K. A movable metal is rotated in clockwise or anticlockwise direction that changes the resistance of preset.

Experiments with 741- Operational amplifier

Description: This versatile 741 operational amplifier module can be used for making a dark detector using an LDR, a photo transistor and a photo...

Super Easy Electronics Projects for Absolute Beginners

There are hundreds of electronics projects published on buildcircuit.com. This time we have selected few projects that should be easier for beginners to start...

How to make a batteryless (crystal set) radio

CRYSTAL SET The simplest radio receiver, known as a Crystal Set, consists of nothing more than a coil, tuning capacitor, diode detector, and a pair of earphones. A...

How to make a digital object counter using, infrared sensor, CD4026 and seven segment...

Description: This is a simple object counter circuit that counts from 0 to 9. You can make this project using four different modules listed below: ...

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...

The simplest and the cheapest FM transmitter- Do-it-yourself(DIY) kit for amateurs

Here's one of the easiest, simplest and the most popular FM transmitter for amateurs and electronics beginners. With this DIY kit, you can transmit...

Building a circuit on a breadboard

A breadboard is a device for testing temporary electronics projects. Components used to test a circuit can be reused for other projects. None of the components are damaged. Almost all people start to learn electronics using breadboard because it is the simplest way of making circuit. The photograph shows a typical small breadboard which is suitable for beginners building simple circuits with one or two ICs (chips).

CD4017 and NE555 timer experiments

You can build simple LED chaser circuits using CD4017 and NE555 timer. There are hundreds of projects in the internet for making such simple...

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.

3 digit – digital object counter DIY kit

Two digit - Digital object counter DIY kit is one of the most popular kits designed by BuildCircuit. The kit is very popular among...

Infrared based music transmitter and receiver

NOTE: A similar kit is available at buildcircuit store. Please check the store. An infrared based music transmitter and receiver is made up of three...

Dark Sensor using 741

We can see how can we make heat sensor from dark sensor.

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.

Fully assembled clap switch for 100-220V AC light bulbs

This fully assembled sound/clap operated switch can be used for turning on your 100-240V AC light bulbs. Usually, we use a clap switch to...

Flasher circuit using NE555 timer- Basic electronic project

This flasher circuit is bit different from other flasher circuits published on buildcircuit.com.

Digital object counter DIY kit

This kit is based on my previous tutorial on 'digital object counter'. I had published the tutorial under 'minibread' category. Please check the tutorial. ...
error: Content is protected !!

Please Subscribe

or
Subscribe

Thank you!