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‎.github/FUNDING.yml

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# These are supported funding model platforms
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github: oxplot
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patreon: oxplot
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open_collective: oxplot
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ko_fi: oxplot
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issuehunt: oxplot

‎.github/social.png

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‎LICENSE

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Copyright (c) 2020, Mansour Behabadi <[email protected]>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the <organization> nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

‎Readme.md

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# fpx: easy USB-C power for all your devices
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This repository contains the hardware design and firmware for [fpx
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module](https://fpx.oxplot.com).
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## Hardware
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Main enabling component of fpx is
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[STUSB4500](https://blog.oxplot.com/usb-pd-standalone-sink-controller/)
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standalone USB-PD IC by STMicroelectronics.
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The rest are supporting components and an AVR ATtiny 186 which programs
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the NVM flash on STUSB4500 by converting configuration read from
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a light sensor.
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[The KiCad files](./board) are verified for manufacturing, and include
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all the part numbers.
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## Firmware
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[The firmware](./firmware) is written as a single C file with no
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interrupts and provided as an Atmel Studio solution. It should however
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be easily buildable by GNU toolchain. The source is well commented and
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self-documenting.
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## Configuration
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The [main configuration tool](https://fpx.oxplot.com/#configure) exists
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in the form of a web page. The Javascript part of the page documents the
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encoding used to transfer configuration using light flashes.
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Due to its simplicity, the configuration tool can be ported to any
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device/platform that can pulse light with a reasonable timing accuracy
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(e.g. Arduino).

‎board/.gitignore

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# Temporary files
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*.000
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*.bak
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*.bck
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*.kicad_pcb-bak
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*.sch-bak
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*~
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_autosave-*
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*.tmp
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*-save.pro
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*-save.kicad_pcb
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fp-info-cache
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# Netlist files (exported from Eeschema)
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*.net
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# Autorouter files (exported from Pcbnew)
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*.dsn
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*.ses
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# Exported BOM files
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*.xml
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*.csv

‎board/1610.kicad_mod

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(module 1610 (layer F.Cu) (tedit 5E9D0CE8)
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(attr smd)
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(fp_text reference REF** (at 0.02794 2.9591) (layer F.SilkS)
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(effects (font (size 1 1) (thickness 0.15)))
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)
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(fp_text value 1610 (at -0.31242 -2.43332) (layer F.Fab)
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(effects (font (size 1 1) (thickness 0.15)))
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)
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(fp_line (start -0.81788 -0.51562) (end 0.76454 -0.51562) (layer F.SilkS) (width 0.15))
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(fp_line (start -0.81788 0.56388) (end 0.76454 0.56388) (layer F.SilkS) (width 0.15))
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(fp_line (start 0.16764 -0.26924) (end -0.12954 0.02794) (layer F.SilkS) (width 0.15))
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(fp_line (start -0.12954 0.02794) (end 0.17018 0.32766) (layer F.SilkS) (width 0.15))
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(fp_line (start 0.17018 0.32766) (end 0.17018 -0.26416) (layer F.SilkS) (width 0.15))
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(fp_line (start -0.18542 0.32766) (end -0.18542 -0.26416) (layer F.SilkS) (width 0.15))
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(fp_line (start -0.92456 -0.37846) (end 0.87884 -0.37846) (layer F.Fab) (width 0.1))
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(fp_line (start 0.87884 -0.37846) (end 0.87884 0.4191) (layer F.Fab) (width 0.1))
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(fp_line (start 0.87884 0.4191) (end -0.92456 0.4191) (layer F.Fab) (width 0.1))
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(fp_line (start -0.92456 0.4191) (end -0.92456 -0.37846) (layer F.Fab) (width 0.1))
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(fp_text user REF** (at 0.04064 0.0762) (layer F.Fab)
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(effects (font (size 1 1) (thickness 0.15)))
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)
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(fp_line (start -1.10744 -0.62484) (end 1.12268 -0.62484) (layer F.CrtYd) (width 0.05))
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(fp_line (start 1.143 -0.61976) (end 1.143 0.74676) (layer F.CrtYd) (width 0.05))
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(fp_line (start 1.13284 0.74168) (end -1.1176 0.74168) (layer F.CrtYd) (width 0.05))
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(fp_line (start -1.11252 0.7366) (end -1.11252 -0.62992) (layer F.CrtYd) (width 0.05))
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(pad 1 smd rect (at -0.6477 0.0254) (size 0.55 0.8) (layers F.Cu F.Paste F.Mask))
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(pad 2 smd rect (at 0.6023 0.0254) (size 0.55 0.8) (layers F.Cu F.Paste F.Mask))
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(model ${KISYS3DMOD}/Diode_SMD.3dshapes/D_0603_1608Metric.wrl
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(at (xyz 0 0 0))
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(scale (xyz 1 1 1))
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(rotate (xyz 0 0 0))
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)
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)

‎board/MOLEX_105450-0101.kicad_mod

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(module MOLEX_105450-0101 (layer F.Cu) (tedit 5ED3852B)
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(fp_text reference REF** (at -1.899125 -5.722835) (layer F.SilkS)
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(effects (font (size 1.003598 1.003598) (thickness 0.015)))
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)
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(fp_text value MOLEX_105450-0101 (at 5.748805 5.717805) (layer F.Fab)
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(effects (font (size 1.003504 1.003504) (thickness 0.015)))
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)
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(fp_poly (pts (xy -3.50081 -1.88) (xy 3.5 -1.88) (xy 3.5 3.77087) (xy -3.50081 3.77087)) (layer Dwgs.User) (width 0.01))
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(fp_line (start -4.47 3.95) (end 4.47 3.95) (layer F.Fab) (width 0.127))
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(fp_line (start 4.47 3.95) (end 4.47 -3.95) (layer F.Fab) (width 0.127))
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(fp_line (start 4.47 -3.95) (end -4.47 -3.95) (layer F.Fab) (width 0.127))
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(fp_line (start -4.47 -3.95) (end -4.47 3.95) (layer F.Fab) (width 0.127))
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(fp_line (start -5.22 -4.71) (end 5.22 -4.71) (layer F.CrtYd) (width 0.05))
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(fp_line (start 5.22 -4.71) (end 5.22 4.2) (layer F.CrtYd) (width 0.05))
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(fp_line (start 5.22 4.2) (end -5.22 4.2) (layer F.CrtYd) (width 0.05))
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(fp_line (start -5.22 4.2) (end -5.22 -4.71) (layer F.CrtYd) (width 0.05))
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(fp_line (start -4.47 3.77) (end 4.47 3.77) (layer F.SilkS) (width 0.127))
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(fp_line (start -4.47 0.3) (end -4.47 -1.9) (layer F.SilkS) (width 0.127))
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(fp_line (start 4.47 0.3) (end 4.47 -1.9) (layer F.SilkS) (width 0.127))
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(fp_poly (pts (xy -3.50241 -1.88) (xy 3.5 -1.88) (xy 3.5 3.7726) (xy -3.50241 3.7726)) (layer Dwgs.User) (width 0.01))
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(pad A1 smd rect (at -3 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A2 smd rect (at -2.5 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A3 smd rect (at -2 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A4 smd rect (at -1.5 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A5 smd rect (at -1 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A6 smd rect (at -0.5 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A7 smd rect (at 0.5 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A8 smd rect (at 1 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A9 smd rect (at 1.5 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A10 smd rect (at 2 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A11 smd rect (at 2.5 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad A12 smd rect (at 3 -3.77) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B1 smd rect (at 3.1 -2.47) (size 1 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B2 smd rect (at 2.25 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B3 smd rect (at 1.75 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B4 smd rect (at 1.25 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B5 smd rect (at 0.75 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B6 smd rect (at 0.25 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B7 smd rect (at -0.25 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B8 smd rect (at -0.75 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B9 smd rect (at -1.25 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B10 smd rect (at -1.75 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B11 smd rect (at -2.25 -2.47) (size 0.3 0.7) (layers F.Cu F.Paste F.Mask))
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(pad B12 smd rect (at -3.1 -2.47) (size 1 0.7) (layers F.Cu F.Paste F.Mask))
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(pad S1 thru_hole oval (at -4.32 -3.36) (size 1 2) (drill oval 0.6 1.6) (layers *.Cu *.Paste *.Mask))
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(pad S1 thru_hole oval (at 4.32 -3.36) (size 1 2) (drill oval 0.6 1.6) (layers *.Cu *.Paste *.Mask))
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(pad S1 thru_hole oval (at -4.32 2) (size 1 2.5) (drill oval 0.6 2.1) (layers *.Cu *.Paste *.Mask))
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(pad S1 thru_hole oval (at 4.32 2) (size 1 2.5) (drill oval 0.6 2.1) (layers *.Cu *.Paste *.Mask))
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(model ${KIPRJMOD}/MOLEX_105450-0101.step
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(at (xyz 0 0 0))
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(scale (xyz 1 1 1))
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(rotate (xyz -90 0 0))
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)
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)

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