The Light Ball Project is an effort to design a sphere of LEDs that will display graphical patterns and play basic music files.
The Light Ball Project is an effort to design a sphere of LEDs that will display graphical patterns and play basic music files. Read more
About this project
The Light Ball project will take the display capability of low cost LEDs and put in the format of a sphere to make pleasing dynamic displays. To augment the experience, it will also play audio files that can be downloaded in various ways.
Since the project requires that custom electronics parts be manufactured the delivery time must allow for assembly and test of a prototype before the final units can be made. This requires a longer delivery time than most projects.
All contributors will be acknowledged on the project web site. Those contributing $25 or more will receive e Light Ball T-shirt. Those contributing $100 or more will receive a "Gizmo". This is a battery powered 2-D version of the Light Ball. It will play simple tunes with a corresponding LED display. The tunes will be chosen at random when stimulated. There are two versions of the Gizmo. Those contributing $100 to $200 will receive the 'small' version. For those contributing more than $200, the 'big' version will have more tunes to choose from.
For those interested in building a LIght Ball themselves, there are several levels of rewards available. This ranges from a set of boards where the contributor is responsible for getting their own parts, to a full kit of parts, and finally a set of boards that has been assembled and tested.
As they become available, technical details of the Light Ball design can be found at the pfaltz.com/LightBall home page.
The original idea and some follow-ups, such as the BlinkyBall (
http://www.kickstarter.com/projects/charliex/blinky-ball) use batteries. The Light Ball with over 1000 LEDs can use as much as 40W while outputing as much light as a 100W incandescant light! Very few batteries would hold up to that.
The power section is designed to accept any DC voltage from 10 to 16 volts. At 12V with all LEDS full on, it is expected to require around 4A.
The central processor is a TI Stellaris microprocessor. This was chosen because of the amount of I/O and processing that it provides, including DMA. The libraries available also support SD cards, Audio I/O, and interrupts to support video decoding.
The "sector" boards use an Microchip PIC processor to provide some basic logic functions as well as some neat features such as a behind-the-scenes glitter effects.
Initially, this will be programmed using the typical pod approach, but it is anticipated that we will be able to implement a full download of code through the USB port.
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- (49 days)