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

Simple dekstop audio amplifier by A6283 I.C

Updated - December 14, 2016 by Arup

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 […]

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

Updated - March 2, 2018 by Arnab

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 […]

DIY 3.3V USB breakout board, LVTTL and LVCMOS compatible

Updated - December 9, 2016 by Arnab

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 […]

Simple magnetic buzzer circuit with UM66 IC

Updated - December 10, 2016 by Arnab

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 […]

Simple Piezo Buzzer circuit diagram and project details

Updated - June 8, 2017 by Arnab

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 […]

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

Updated - November 25, 2016 by Arnab

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 […]

Make your own DuPont jumper wires easily

Updated - November 24, 2016 by Arnab

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 […]

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

Updated - December 10, 2016 by Arnab

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. […]

DIY PoE injector for 10/100M Ethernet

Updated - September 20, 2017 by Arnab

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 […]

Zero drop dusk to dawn solar charge controller by Sandeep

Updated - October 29, 2016 by Arup

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 […]