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Hardware, firmware and software for the Hippie Trap LED art project.

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led-chandelier

LED bottle chandelier built for Nowhere 2015

by Robert Kaye and David Martin

Mock-up

For a render of what we think this might look like a look in the design folder.

Hardware notes

The chandalier made up of about 100 bottles that will have circuit boards with LEDs inside them. 4 RGD LEDs (WS2812B) connected to an atmega128 will light up each bottle. Communication happens over a bone simple serial connection, hopefully at 250kbps. For serial timing and ram reasons, I chose the atmega128 over the attiny84.

The bottles will be connected to 5V power, ground and a communication line. The communication will be via a line driver that broadcasts the serial signal to each bottle. The RPi can then send either color information to each bottle or more interestingly send a crude set of instructions on how to build a color animation. This way the chanelier can work in a centrally coordinated mode or each bottle carrying out its own program.

.brd and .sch files for Eagle are in hardware folder.

Notes about the circuit

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Hardware, firmware and software for the Hippie Trap LED art project.

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