Circuit Lake » 555

Gas Leakage Alarm

admin — Sat, 15 Oct 2011 01:33:56 +0000

Here is a circuit that can be used to detects the leakage of LPG gas and alerts the user through audio-visual indications. The circuit uses SEN-1327 gas sensor module from RhydoLABZ. Its output goes high when the gas level reaches or exceeds certain point. A preset in the module is used to set the [...]

Inductivity Meter Using IC 555

admin — Fri, 01 Jul 2011 22:11:33 +0000

The projects shows you how to build simple low cost Inductance Meter based on popular IC 555. The 555 works in its most simple rectangle oscillation configuration. In this mode, the duty-cycle should be around 50%, but this depends on the load on pin 3. Over the amplifying transistor Q1 the AC is given [...]

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Simple Solar and Wind Charge Controller, IC 555

admin — Thu, 30 Jun 2011 05:11:03 +0000

The purpose of the project is to build a simple charge controller for solar and wind systems based on IC NE555 Timer. Michael Davis, the designer, decides to use IC 555 instead of MCU because he worried that the microcontrollers would be too expensive or difficult to obtain in some parts of the world, and [...]

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Datsun Digital Speedometer

admin — Fri, 26 Nov 2010 00:13:43 +0000

This digital speedometer project was built to replace unreliable analog speedometer of 1971 Datsun 1200. The circuit uses digital IC like 555 timer, 4017 CMOS decade counter, 74C14 hex schmitt trigger inverter, 4553 CMOS 3-digit BCD counter and IC6 4511 seven-segment decoder/driver. This car speedometer project is equipped with two strong magnets to the tailshaft [...]

Flashing LED Light

admin — Tue, 22 Dec 2009 05:38:44 +0000

This project shows you how to build simple flashing light based on IC 555. The 555 has function as clock generator with dutycyle less than 100 and more than 50. The other components are Voltage regulator, 3 power amber LED and passive component like resistor and capacitor. The project submitted by Musheg Khurshudyan. He said [...]

Simple PWM Controller Based On IC 555

admin — Wed, 13 May 2009 05:11:38 +0000

If you need simple PWM controller? May be this IC 555 based PWM could be your choice. This controller is aimed at speed control of small motors or for dimming low-voltage lighting. It will control the output from about 5% up to at least 95% of full power. The Main project part is popular 555 [...]

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555CN Based Frequency Generator

admin — Fri, 19 Sep 2008 03:03:10 +0000

This is a frequency generator project based on IC 555CN. Nice electronic project for new electronic beginner. How to make a Frequency Generator: On cloud busters Fredbuster created a wonder tutorial for getting started and building your own Zapper. Fredbusters Tutorial in PDF-Based off his design here is how I made my frequency generator. electronic projec, 555 Frequency [...]

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