555 ‹ BUILD CIRCUIT

2

Clap switch using 3 different modules

May 09 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar Sapkota

Description: In this clap switch we use three different modules given below. It is necessary to make these three modules in order to make a clap switch. a. Dark sensor using 2 transistors. b. Monostable mode of 555 timer. c. Toggle switch using 555 timer. Now, follow these steps: Step 1: Connect 555 timer dark sensor (monostable module) t0 2 transistors module. Remove LDR and resistor 4.7K (connected between Pin 2 and GND) from 555 timer based dark sensor circuit(given...

1

Toggle switch using 555

May 04 in Basic Electronics, LDR Engineering, MINI Breadboard Written by: Sagar Sapkota

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 till you press the switch again. The project has been derived from buildcircuit.com. You can read the original post from this link: http://www.buildcircuit.com/toggle-switch/ Schematic: http://youtu.be/_C_wfb3fOcM You can also operate this circuit using a relay. HOW TO USE A RELAY? In all MINIBREAD projects, we have used the following...

1

Monostable module

Apr 20 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar Sapkota

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, touch switches, frequency divider, capacitance measurement, bouncefree switches and so on. READ MORE ABOUT MONOSTABLE MODE Download FREE simulators for learning 555 timer. An example of monostable mode The following schematic has been taken from buildcircuit.com. The following circuit...

2

FREE 555 timer simulators for electronics beginners

Apr 14 in Basic Electronics, LDR Engineering, Recent Written by: Sagar

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 that would be very useful for electronics beginners. Please go the links I have given on this page and download those applications for FREE. You may also find something more useful on those pages. I will update this page again once I find more simulators. Please write me if you know any. CLARKSON: Clarkson offers a FREE 555 timer simulator for you. On this...

3

Combine two dark sensors and make an easy clap switch

Mar 06 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar

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 you confirm that the small modules work properly, you can combine them together and make it a big project. In this article, we will see how we can combine small projects(dark sensors) to make a bigger project. We will combine two independent dark sensors(Small Projects) to make a simple clap switch(Big Project). This project is based on previous...

3

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

Mar 02 in LDR Engineering, Recent Written by: Sagar

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 make the following projects. a. Light sensor and dark sensor I strongly recommend you to make a dark sensor and light sensor using LDR and understand clearly how it works. b. NE555 astable mode- Understand the working of astable mode of NE555 timer. The police siren project is based on these two projects, so you need to understand these two projects...

1

Blinker using arduino and NE555 timer IC

Jan 01 in Arduino, circuit-blog.com Written by: Sagar

Code for Blinker: download A blinker switches On/off an LED at a regular interval. This is the one of the easiest arduino projects. You might be interested in making this project on breadboard. So, you can take some easy steps given below: - One pin of reset switch goes to GND(ground) and the other pin goes to reset pin(Pin1 of chip). - 10K resistor is connected across reset pin (Pin 1) and Vcc. Vcc is the power to run the programmer and that is drawn by FT232RL breakout board via computer. -...

105

Clap switch

Dec 18 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar

READ ABOUT RECENTLY PUBLISHED CLAP SWITCH CHECK "CLAP SWITCH WITH TOGGLE FEATURE". In order to make a clap switch, we have to combine the touch sensor(monostable mode of 555) and the transistorized dark sensor circuits. Whenever there is loud sound produced near the electret condenser mic, pin 2 of 555 gets triggered and it switches on the LED D1. The LED remains on for a definite time determined by R1 and C1. We can adjust the sensitivity of the circuit using a variable resistor in place...

0

Light operated switch

Dec 18 in LDR Engineering Written by: Sagar

To make light operated switch, you need to know these circuits: a. Toggle switch b. Dark sensor using two transistors c. How to use a relay - You need to keep LDR in dark case so that the relay remains active all the time(Pole connects to NO). - When you put light on LDR, the relay switches off and Pole connects to NC; this operation toggles 555 timer and switches on the LED D1. -When you put light again on LDR, LED D1 switches off. Fig. Light operated switch (Click...

3

Up Counter

Nov 24 in LDR Engineering Written by: Sagar

NEW PROJECT: EASY_STEPS_MAKE_INFRARED_BASED_OBJECT_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. Click here to read about ‘How digital Clock works?’ We need following components for making an up counter. 555- configured in astable mode 7490- decade counter- Click here to get the datasheet 7447- BCD to seven segment display- Click here to get the datasheet. Seven...

555

Clap switch using 3 different modules

Toggle switch using 555

Monostable module

FREE 555 timer simulators for electronics beginners

Combine two dark sensors and make an easy clap switch

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

Blinker using arduino and NE555 timer IC

Clap switch

Light operated switch

Up Counter

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