2 layers27 × 15.5 mm
Symmetrical waffle
spacekookie/kicad-workshop
A full day KiCAD workshop including instructions, documentation, and plenty of example projects
31 parts1MIT
2 layers25 × 23.5 mm
Symmetrical waffle
spacekookie/kicad-workshop1A full day KiCAD workshop including instructions, documentation, and plenty of example projects
- Size
- 25 × 23.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 45
- Pads
- 148
- Tracks, vias
- 391, 22
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 3 Mar 2018
- Updated
- 17 Mar 2018
Overview
Symmetrical waffle is an open-source printed circuit board by spacekookie, from the spacekookie/kicad-workshop repository on GitHub, published under the MIT licence. It is a 2-layer board of 25 × 23.5 mm with 38 parts on 45 nets, routed with 391 tracks and 22 vias.
It is built around the ATMEGA328-AU and WS2812B. Its parts include 18 capacitors, 13 ICs, 2 connectors, 2 switches and 1 resistor. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
examples/symwaf_simple/README.mdSymmetrical Waffle
(Name picked by Github random name generator 😉)
This is the simple version of the example project. DO NOT PRODUCE THIS! YOU WILL NOT BE ABLE TO PROGRAM OR RUN IT! Nontheless there are a few things you can learn from this 😄
- Creating a project from scratch
- Creating a schematic symbol & footprint
- Working with KiCAD 3D files (and downloading new ones)
- Going through the workflow to produce a board
Components
- AtMega 328
- 12 ws2812b (Neopixel) LED's
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | C | Capacitors_SMD:C_0805 | C7, C8, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18 |
| 12 | ws2812b | symwaf:ws2812b | U2, U3, U4, U5, U6, U7, U8, U9, U10, U11, U12, U13 |
| 3 | 1nF | Capacitors_SMD:C_0805 | C1, C2, C3 |
| 2 | 22pF | Capacitors_SMD:C_0805 | C5, C6 |
| 1 | 100nF | Capacitors_SMD:C_0805 | C4 |
| 1 | 10K | Resistors_SMD:R_0805 | R1 |
| 1 | ATMEGA328-AU | Housings_QFP:TQFP-32_7x7mm_Pitch0.8mm | U1 |
| 1 | Crystal | Crystals:Crystal_AT310_d3.0mm_l10.0mm_Horizontal | Y1 |
| 1 | FTDI Programmer | Pin_Headers:Pin_Header_Angled_1x06_Pitch1.00mm | J2 |
| 1 | GPIO Header | Pin_Headers:Pin_Header_Straight_1x10_Pitch1.00mm | GPIO Header |
| 1 | ICSP | Pin_Headers:Pin_Header_Angled_2x03_Pitch1.00mm | J1 |
| 1 | SW_DIP_x01 | Buttons_Switches_THT:SW_DIP_x1_W7.62mm_Piano | SW2 |
| 1 | SW_Push | Buttons_Switches_THT:SW_PUSH_6mm_h5mm | SW1 |
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Questions
How big is the Symmetrical waffle PCB?
It measures 25 × 23.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Symmetrical waffle use?
38 parts, built around the ATMEGA328-AU and WS2812B. 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 Symmetrical waffle KiCad files?
From the spacekookie/kicad-workshop repository on GitHub, at the commit this page was made from: the board is examples/symwaf_complete/symmetrical-waffle.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Symmetrical waffle 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).