All posts in the 'LED projects' Category
Posted on 27 Jul 2008
The goal of this project is to provide as complete of a resource as possible for people interested in getting into creating artwork incorporating LED lighting. A secondary goal is to provide basic information on general engineering practices for creating standalone LED art.[more]
Posted on 27 Jul 2008
This is a LED art project with 95 RGB LEDs arranged in a 3D cylinder shape control with a microcontroller-based driver circuit. The LEDs are individually addressable, and when you power it on, the software cycles through a series of animations, e.g. various moving rainbowy patterns, “rain”, “fireworks”, and so on. It doesn’t serve much of a purpose but it is kind of cool to look at. The hardware and software are open source, so feel free to use/copy/extend whatever you find here. [more]
Posted on 24 Jul 2008
POV stands for Persistence Of Vision. It’s a term that’s been applied to devices that rely on the eye’s tendency to continue to “see” an image for a short time after it has disappered. This is also what causes the apparent blurring of objects that are in motion (like an airplane propeller).This project consists of three circuit boards with a row of 32 LEDs on each .The circuit boards are mounted radially in the spokes of a bicycle wheel and batteries near the hub supply power to them. The LEDs are controlled by a microcontroller that measures the rotational speed of the wheel by way of a hall effect (magnetic) sensor. As the wheel rotates, the microcontroller turns the individual LEDs on and off in such a way that a static image appears to float inside the wheel.[more]
Posted on 15 Jul 2008
“Aletheic” is a free-standing sculptural piece using 4 infrared sensors that trigger light patterns in a grid of 64 LEDs controlled by Stamp2sx and MAX7219. The values sent from the sensors are combined into a weighted average that controls the individual brightness of each LED. Moving your hands around in the sensor IR beams triggers shifting wave patterns through the LED grid.[more]
Posted on 15 Jul 2008
Olivier writes:
The idea of this project came from my youngest son. He was dreaming of a small tool able to write symbols or pictures on a screen. As a graphic LCD (even bought at Crownhill 
) was too expensive (or too easy??), the solution adopted was to pilot a matrix of Leds. This way, with only some cheap transistors, common red Leds, and a 16F628 , the dream could become reality.
[more]
