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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Electronic Projects

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  1. Electronic Projects 79
    1. Alarms 1
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    6. Light/Laser 1
    7. Microcontrollers 10
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  2. Electronic Theory 2
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View all featured resources
Resource icon alec_t
Mains-powered LED night-light 2012-11-09
I'm probably re-inventing the wheel, but here are a few variations of a mains-powered night-light f
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Resource icon M
Diode Log and AntiLog Circuit Derivations 2012-10-15
Here is some basic theory on diode log and antilog circuits and their derivations. Lots of people s
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Resource icon M
Indirect Measurement of the Current Draw of a Device 2012-10-15
Sometimes we want to know the current draw of a device for various reasons. One reason would be to
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Resource icon 3v0
COOP BUILD: Breadboard Trainer/Lab/Breadboard Buddies 2012-10-13
This is the master index for all completed modules for this project. Please PM 3v0 if you have upl
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Resource icon C
Real-Time 'Stopwatch' 2012-09-10
This is a simple electronic "stopwatch" you can use to time an event. I used it when developing a d
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Resource icon Mikebits
TimerBot Project 2012-09-06
This document presents several 555 timer circuits and there usage for a robotic obstacle avoidance
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Resource icon B
DVR IR Motion Trigger 2012-08-29
A client needed a timer to keep his DVR enabled and recording when the IR motion detector output a
5.00 star(s) 1 ratings
Updated
Resource icon QuietMan
555 Bistable Multivibrator 2012-08-29
The most common 555 configurations are that of a Astable and Monostable Multivibrator. This shows h
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Resource icon bananasiong
ADC Using 555 Timer - Delta Modulator 2012-08-29
With the availability of the powerful micro controller in the modern era, people tend to forget the
5.00 star(s) 1 ratings
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Resource icon Wond3rboy
4-bit LCD in C18 Compiler 2012-08-21
Hi, here is a code in C18 for using an LCD in 4-bit mode to display the string "Hello ETO!". It use
0.00 star(s) 0 ratings
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Resource icon R
Interface a character LCD display to PIC microcontroller 2012-08-01
[B]Introduction[/B] An HD44780 Character LCD display device is designed for interfacing with embed
4.00 star(s) 1 ratings
Updated
Resource icon rs14smith
Solar Charged Remote Control Electric Lawn Mower 2012-05-25
I, Robert Steve Smith, have put together a series of videos below that will show you how to create
5.00 star(s) 2 ratings
Updated
Resource icon alec_t
Simple, cheap, Square/Triangle/Sine-wave generator 2012-05-25
A test signal generator is invaluable when making or repairing electronic equipment. Although a ful
4.00 star(s) 1 ratings
Updated
Resource icon C
Inductance measuring adapter for multimeter 2012-05-25
For those of us without an actual inductance meter, this project is an easy-to-build way to use an
4.00 star(s) 2 ratings
Updated
Resource icon ElectroMaster
The 555 Timer 2012-04-07
The 555 timer is capable of producing accurate timing ranges from micro
5.00 star(s) 4 ratings
Updated
Resource icon Jon Wilder
PIC 16F and Register Banking Explained 2012-03-25
PIC 16F And iRAM Banking By Jon Wilder As some of you have noticed, the internal RAM in the
5.00 star(s) 1 ratings
Updated
Resource icon bychon
Ohm's Law for Beginners (or The Amp-Hour Fallacy) 2012-03-14
Just about once a day, somebody writes in with, “My boom box has a dead battery that says 12 volt
5.00 star(s) 1 ratings
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Resource icon ElectroMaster
The Basics of Bypass Capacitors 2012-02-01
This article will explain the function of a bypass capacitor, when its appropriate to use them, and
5.00 star(s) 1 ratings
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Resource icon Jon Wilder
A Beginner's Introduction to Microcontrollers 2012-01-31
Time after time I see beginners try to get started in embedded electronics, only to be overwhelmed
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Resource icon Menticol
Capacitor ESR Meter 2012-01-27
[B]What is ESR and How Can It be Tested?[/B] As the allmighty Samuel M. Goldwasser says, "ESR (
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