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gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software

a led ring designed to attach to 30mm optical cage systems
Ambient is an open-source printed circuit board by WillMatthews, from the WillMatthews/led-ring repository on GitHub, published under the MIT licence. It is a 2-layer board of 75 × 60 mm with 29 parts on 14 nets, routed with 135 tracks and 6 vias.
Its parts include 12 resistors, 12 diodes and 1 connector.
This board is designed to place a ring of LEDs around a 30mm cage system. Power it through a SMA connector, and place whatever 3mm LEDs you want on the board. Choice of resistors is up to you, but I recommend you choose a good operating point (see datasheets, and compare with your power supply).
The board is a torus.
A 3D printed mount is provided to attach the board to a 30mm cage system.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12 |
| 12 | R | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 1 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | J1 |

gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software

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It measures 75 × 60 mm and has 2 copper layers, 1.6 mm thick.
29 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.
From the WillMatthews/led-ring repository on GitHub, at the commit this page was made from: the board is ambient.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
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).