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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 104
    1. Alarms 1
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    7. Microcontrollers 17
    8. Power Supply 36
    9. Remote Control 4
    10. Robotic 3
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Resource statistics

Categories
21
Electronic Projects
370
Downloads
61
Disk usage
16.9 MB
  • How to operate an A7672S 4G modem with a computer

    Resource 'How to operate an A7672S 4G modem with a computer'

    by Nikhil Angnihotri, EngineersGarage.com As 5G is in full swing in the telecom segment, 4G modems are fast occupying the embedded space. The 4G GSM modems are useful in embedded systems for several reasons. 1. They provide a high-speed wireless connection to the internet. This allows embedded systems to access and process data in real time, which is essential for telematics, industrial automation, and remote monitoring applications. 2. The 4G GSM modems are relatively compact and...
Resource icon V
Capacitor ESR Tester 2011-09-13
This project was conceived as a way to enhance the collection of test equipment on my test bench. I
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Resource icon ElectroMaster
Simple Lie Detector 2011-09-10
Here's a simple lie detector that can be built in a few minutes, it is mean for fun and is obviousl
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Resource icon sheldonstv
Simple gated oscillator 2011-09-10
Here is a simple gated oscillator for you to play with. It's nothing complicated build wise but
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Resource icon 3lectrix
Infrared Proximity Detector 2011-09-10
This proximity detector using an infrared detector (Fig. 1) can be used in various equipment like a
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Resource icon 3lectrix
Light Activated Switch 2011-09-04
The circuit is based on National Semiconductors comparator LM311 (IC1) and an LDR. The non invertin
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Resource icon Boncuk
LM555 for Air Cannon 2011-08-27
The idea is to have two monostables timers (LM555) for triggering the air cannon. Timer1 (IC1) i
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Resource icon D
Simple, inexpensive vehicle immobilizer 2011-08-26
This vehicle immobilizer circuit is quite possibly the smallest, simplest, cheapest and easiest to
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Resource icon ElectroMaster
The 4017 Decade Counter 2011-08-01
[ATTACH=RIGHT]54828[/ATTACH]This handy Decade Counter (or sometimes called a Johnson Counter) can b
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Simple Audio Signal Injector 2011-07-05
Here's a signal injector for those of us like me who don't have a bench full of nice test equipment
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Resource icon 3lectrix
How To: Test A Uni Junction Transistor 2011-07-03
You can easily test the health of a UJT (Uni junction transistor) by using a digital multimeter. Do
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Emergency Double Strobe Flip/Flop 2011-07-01
Double flash flip/flop with a PIC12
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Resource icon ElectroMaster
Jeopardy Quiz Game 2011-06-22
This electronic "Jeopardy" game circuit consists of four push-button switches. When one is pressed,
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Resource icon 3lectrix
Digital Stop Watch 2011-06-18
A digital stop watch built around timer IC LM555 and 4-digit counter IC MM74C926 with multiplexed 7
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Resource icon cyb0rg777
Alarm - With Infrared Remote 2011-06-17
I built this circuit recently and decided to do a rough schematic and post it here.It is a car alar
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Resource icon 3lectrix
Digital Code Lock 2011-06-16
This is a simple but effective code lock circuit that has an automatic reset facility. The circuit
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Resource icon ElectroMaster
Computer Voltage Monitor 2011-06-16
This is an illustrated tutorial on building a voltage monitor for fan control circuits - rheostats,
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Resource icon 3lectrix
Police Siren (NE555) 2011-06-16
Here is the circuit diagram of a police siren based on NE55 timer IC. The circuit uses two NE555 ti
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Resource icon 3lectrix
Dark Detector 2011-06-16
The dark detector circuit shown here can be used to produce an audible alarm when the light inside
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Resource icon DirtyLude
Cheap ARM Starting Kit 2011-06-16
[QUOTE=TiagoSilva;838453]I always liked ARM processors too, but there is too much offer, and for so
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Resource icon MrDEB
DIY printed circuit boards My experiments and mistakes. 2011-06-15
New ArticleDIY Printed Circuit Boards for the home hobbyist methods and mistakes By Doug Bezaire
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