2 layers100 × 100 mm
ESP drone
hackclub/OnBoard
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130 parts915
2 layers180 × 120 mm
Hippie trap concentrator
mayhem/hippie-trap2Hardware, firmware and software for the Hippie Trap LED art project.
- Size
- 180 × 120 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 130
- Nets
- 3
- Pads
- 375
- Tracks, vias
- 149, 0
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 9 Apr 2015
- Updated
- 25 Feb 2025
Overview
Hippie trap concentrator is an open-source printed circuit board by mayhem, from the mayhem/hippie-trap repository on GitHub, published under the MIT licence. It is a 2-layer board of 180 × 120 mm with 130 parts on 3 nets, routed with 149 tracks and 0 vias.
README
README.mdled-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
- Regulated 5V power supply in the body of the chandelier
- WS2812B LEDS: http://www.adafruit.com/datasheets/WS2812B.pdf
- MCU: atmega168
- Shottky diodes on the inputs.
- Program via a pogoplug, no actual connector will be on the board.
Parts
130| Qty | Value | Footprint | References |
|---|---|---|---|
| 120 | CONN_01X03 | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | P1, P10, P11, P100, P101, P102, P103, P104, P105, P106, P107, P108, P109, P110, P111, P112 +104 |
| 1 | PWR1 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | P61 |
| 1 | PWR2 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | P62 |
| 1 | PWR3 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | P123 |
| 1 | PWR4 | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | P124 |
| 1 | RPi | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | P125 |
The 125 most common of 130 parts.
Questions
How big is the Hippie trap concentrator PCB?
It measures 180 × 120 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hippie trap concentrator use?
130 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Hippie trap concentrator KiCad files?
From the mayhem/hippie-trap repository on GitHub, at the commit this page was made from: the board is hardware/hippie-trap-concentrator/hippie-trap-concentrator.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hippie trap concentrator design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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Euclid36
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At the time of creation, using Kicad 5.1.9 - This may not work with future versions
130 parts24 - 2 layers177.8 × 130.8 mm
