LED Projects

Light Emitting Diode Projects

Category Archives: Costume

DIY LEDs as light detectors

Embedds admin in his post has perfectly written:  “From semiconductor physics we know that semiconductor junction when exposed to light becomes more conductive. So when LED cathode is connected to +5V and anode to 0V it simply charges as capacitor.Then program switches anode pin to high Z input and read its state. Depending on time taken […]

Scrolling LED display for SMS via an Android app and Arduino

Hey do you want to send SMS to your friend? Try this!!! Now you can send SMS text messages to a cheap scrolling LED display via an Android app and arduino with USB host shield. To build this you will require: an Android Phone (2.3.3+), Scrolling LED Belt Buckle, Arduino and USB Host Shield  Necessary software […]

DIY Candle Simulator

Candle light is usually warm and waves slowly with the random oscillations of the air in the surrounding environment. It should be possible to simulate the effect of a candle with a small electronic circuit that generates random patterns or numbers. Here is a simple such circuit shared by Embedds member. To create the candle effect […]

DIY LED based 3D screen

 Hackedgadgets member Alan Parekh shared an amazing build of Seekway who develped a 3D screen using 76, 000 LEDs.  If you are having a big building entrance, then you too can try to build such a huge display to put it in. If not, then still you can try some smaller builds for your room. Creating one […]

Cool LED clock with Analog readout

You can build an amazing LED based clock where both analog and digital signals are involved. This ‘mixed signal’ based clock has an analog readout, with all the digital signal processing involved.  Dos4ever member Ronald Dekker has shared his design so called as ‘A Mixed-Signal LED Clock‘ can be taken as a reference for you […]

MEMS technology based Tilt Sensor

Pyroelectro member Chris presents a very interesting project of building a working tilt sensor. The latest MEMS Technology based accelorometer sensor is used together with some digital circuitry and LEDs to build this Tilt Sensor. The Tilt sensor should have 3 core components: A Custom Comparator Based Analog to Digtal Converter An 8-State Machine To Drive The LED […]