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“This is my first instructable and I wasn’t planning on doing it when I first started this project, so bear with me and any kind of flaws it may have. I first decided to do this project when I …
“This year’s (2015) Holiday card features a pop-up design back-lit by a LED and no wires! If you have the time, homemade cards are some of the coolest things to give people. The rise in the popularity of the …
“I purchased a GE pre-lit Christmas tree in 2007. The lighting was composed of custom strings of clear Constant-on incandescent bulbs. Each string included 1, 2 or 3 groups of 49 constant-on bulbs and one fuse bulb in series. There …
“LED Throwies are an inexpensive way to add color to any ferromagnetic surface in your neighborhood. A Throwie consists of a lithium battery, a 10mm diffused LED and a rare-earth magnet taped together. Throw it up high and in quantity …
“DIY Awsome Christmas tree with mini led lights and dc toy motor its easy DIY and good gift idea for Christmas, You can make any color of your choice by choosing different color led lights,For making it just requires …
“In this instructable I will show you how to build your own infinity mirror clock! It’s really awesome, cheap and easy, no arduino or soldering needed! I used a Mickey Mouse alarm clock from Disneyland. It was old and …
“A few weeks ago I found a DIODER LED strip set from a long-ago trek to IKEA, and considered that something could be done with it. So in this article you can see how easy it is to control the …
Today we will build a circuit that uses an LED in a curious way - to detect brightness. We all know that LEDs have a certain color but some of these LEDs can also detect light. Obviously they do not have …
In the circuit of this article we will build a voltage comparator using an integrated chip called LM393. The LM393 is a dual difference comparator. This means that you have two independent voltage comparators. The circuit compares the input voltages …
Today’s circuit aims to control quite a few LEDs with few pins and without using other integrated chips. The technique used is called charlieplexing and was proposed in 1994 by Charlie Allen of Maxim, having nevertheless been the subject …
Sending information from the micro-controller to the user is extremely important to help in the interaction between the two. The use of 7 Segment LEDs is a common practice since they are simple to use devices that allow the sending …
The circuit presented today is a circuit built with 3 Shift Registers - 74HC595. This circuit allows controlling up to 24 outputs - in the case of LEDs and controlling them independently. A CSEduino was used to control the 24 outputs. Since …
Building of two circuits that flash alternately to two LEDs at a fixed cadence. These are very basic circuits and they show two ways of building circuits using transistors BJT PNP and NPN. These are classic circuits that use the …