Circuits DIY – Page 3 of 12 – Electronics & Embedded System news, tips and tutotials

Simple dekstop audio amplifier by A6283 I.C

I got two creative speakers from a friend who didn't need that. Since they are only speakers, and not with inbuilt amplifiers, it's not possible to run those speakers from PC/mobile…

Arup December 12, 2016

DIY CFL/Tube

Simplest SMPS power supply ever – efficient and powerful – from an old CFL

New to power electronics ? Here is your first SMPS project. But a SMPS from an old/dead CFL ? Yes, it's possible, with a little modification, of course the CFL's…

Arnab December 11, 2016

USB Computer DIY

DIY 3.3V USB breakout board, LVTTL and LVCMOS compatible

Nowdays 3.3V logic level is gaining popularity, almost every every new microcontrollers are working on 3.3 volt. The worst part is some of them are not tolerant to input voltage above…

Arnab December 9, 2016

Basic Electronics

Simple magnetic buzzer circuit with UM66 IC

Electromagnetic buzzers are another type of popular buzzers, they're operated at relatively lower voltage and are of smaller size than piezo buzzers. A magnetic buzzer circuit is usually found in…

Arnab December 1, 2016

Basic Electronics DIY

Simple Piezo Buzzer circuit diagram and project details

Piezo buzzers are one of the most common buzzers available around, they got their name from the piezoelectric material used as the active element. These buzzers are usually driven at…

Arnab November 30, 2016

LED Driver

1 watt LED driver circuit 1.5V input, Modified Joule thief

Here a simple 1 watt LED driver circuit based on a modified joule thief design, runs on a 1.5V single AA or AAA cell. I got the concept of this…

Arnab November 25, 2016

DIY

Make your own DuPont jumper wires easily

Jumper wires or DuPont wires are popular for fast prototyping, widely used on breadboard project. Straight to the point, this tutorial is for beginners, who are struggling with jumpers. Making your…

Arnab November 23, 2016

Battery LED Driver

1W to 5W led driver circuit with 12V input

This led driver circuit explains how you can power up 0.5W to 5W LED strips directly from a 12V lead-acid battery without wasting much power or blowing up the LEDs.…

Arnab November 19, 2016

Battery Computer DIY

DIY PoE injector for 10/100M Ethernet

So it's pretty frustrating to run a separate power cable to outdoor/distant networking devices like outdoor access points, IP cameras, VoIP phones. That's when PoE is useful, and now we're going…

Arnab November 10, 2016

Others Solar Projects

Zero drop dusk to dawn solar charge controller by Sandeep

When you work with solar panels, you don't just need a panel to supply power, battery to store power and lights to glow, you will always need a good charge…

Arup October 4, 2013