LED Projects

Light Emitting Diode Projects

DIY Bike Taillights

With 2×8 arrays of LEDs you can create your own Bike twilight similar to the project posted here by justDIY. Its a one week job for you to build your wonderful creation. Wide options are available to make your project attractive like: you can add some automatic control circuitry, painting the circuit boards, masking off each LED lens so they’d stay nice and bright.   


DIY Pocket binary Alarm Clock

Binary Alarm Clock provides an original and innovative method of displaying the accurate time. Instructables member linux-dude shared his compact binary alarm clock that uses an Arduino Duemilanove (which fits perfectly in the tin) to keep time and control the indicator LEDs. The LEDs are arranged in two rows as you would expect, representing hours and minutes. A small piezo speaker serves as the alarm buzzer, which should be sufficient to wake up most people, though something bigger might be required for heavy sleepers.

So what’s you waiting for???? Grab the ideas and go on to try it for yourself – your own binary alarm clock that fits in your pocket!!!!


Insanely Bright 60W LED Backlight for a 58″ Plasma Screen


Ambilight, which is short for Ambient Lighting Technology, is a feature invented by Philips Electronics into their TVs that analyzes the signal and adjusts a ring of LEDs to match colors.

We can build a simple “Ambilight” clone. Macetech member Garrett with his team build an Insanely Bright 60W LED Backlight for a 58″ Plasma Screen.

“Materials used:
58″ Plasma TV & Mini PC
60+ Watts RGB LEDs
18 Satellite S-001 LED Modules
3 OctoBar LED Drivers
1 Arduino Uno
1 ShiftBrite Shield

For necessary software configuration,  boblight software package is used. Prior to that remember to install the X11 development dependencies first. The boblight config file created by Garrett can be seen here. The next step is to understand the AtmoLight protocol and control the LEDs using an existing product called ArduinoAtmo. It controls ShiftBrite, MegaBrites, ShiftBars, and OctoBars. Its code created by Garrett can be  seen here

Wine-O-Meter – Carnival-Style Breathalyzer

Expecting plenty of drunken revelry, Substatica’s member Phil constructed the Arduino Wine-o-Meter – a carnival “Test your strength” style breathalyzer.  The 25 Shiftbrite modules are lined up in a column, which is connected to an Arduino tucked away in a cardboard box and are powered by a 4.5volt 500mA adapter. The Arduino takes readings from an MQ-3 Gas/Alcohol sensor.

” Materials used:


512 RGB pixels based LED panel

Adafruit brings out 512 bright RGB LEDs based panels arranged in a 16X32 grids fashion.  This product is superb product to be used to display animations or short video clips. These displays are designed to be driven by FPGA, CPLD, Propeller, XMOS or other high speed multi-processor controller. The good news is that the display is pre-white balanced with nice uniformity so if you turn on all the LEDs its not a particularly tinted white.

You can have a full wiring diagrams and working Arduino library code with examples from drawing pixels, lines, rectangles, circles and text. You’ll get your color blasting within the hour!


Sparkleball for New Year’s eve

2010 New Year's ball

  On 2010 New Year’s Eve Macetech member Garrett build a miniature version of the Times Square sparkleball using about 120 16oz plastic cups hot-glued together into a sphere. He has documented the build so you could build your own.

“Materials used:

six Satellite Modules (high power RGB LED arrays),

six ShiftBars (three channel LED controllers),

a Seeeduino, and

a ShiftBrite Shield

16oz plastic cups”