Commit 64019ea2 authored by Patrick's avatar Patrick

initial commit

parents
# For PCBs designed using KiCAD: http://www.kicad-pcb.org/
# Temporary files
*.000
*.bak
# PCB backups
*.kicad_pcb-bak
# Netlist files (exported from Eeschema)
*.net
# Autorouter files (exported from Pcbnew)
.dsn
Piezo-Sensor
------------
A Stanalone piezo conditioning board for use as an impact sensor.
The circuit takes the input noise siganl from the attached piezo,
rectifies it, clips it to 5V and passes through an RC pair to give
a pulse-and-discharge signal.
The pulse duration is approximately 10ms long, and the maximum
voltage relates to the impact size on the piezo, so it's only
triggered by an impact and not a slow press.
By choosing a threshold voltage level on the attached device, it's
possible to filter out impacts above a required size. The RC circuit
is specifically sized to be useful for registering strikes from
foam dart guns such as those from Nerf guns.
This diff is collapsed.
G04 (created by PCBNEW (2013-jul-07)-stable) date Sun 15 Mar 2015 20:22:26 GMT*
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G04 Gerber Fmt 3.4, Leading zero omitted, Abs format*
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G04 APERTURE END LIST*
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This diff is collapsed.
G04 (created by PCBNEW (2013-jul-07)-stable) date Sun 15 Mar 2015 20:22:26 GMT*
%MOIN*%
G04 Gerber Fmt 3.4, Leading zero omitted, Abs format*
%FSLAX34Y34*%
G01*
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G04 APERTURE LIST*
%ADD10C,0.00590551*%
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G04 APERTURE END LIST*
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This diff is collapsed.
G04 (created by PCBNEW (2013-jul-07)-stable) date Sun 15 Mar 2015 20:22:26 GMT*
%MOIN*%
G04 Gerber Fmt 3.4, Leading zero omitted, Abs format*
%FSLAX34Y34*%
G01*
G70*
G90*
G04 APERTURE LIST*
%ADD10C,0.00590551*%
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G04 APERTURE END LIST*
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