Initial citcuit design.
Rename file.
Tweak design.

--HG--
rename : AnalogSensorAndFiltering.sch => Regulation_Breath.sch
No design changes.
Layout changes.
Add Makefile to generate PDFs.
Do the beginnings of a board layout.
Add simulated circuits
Work a LONG time ago.
Move repository 'up a directory'

--HG--
rename : BreathSensor.asc => circuit/BreathSensor.asc
rename : GSRSensor-1opamp.asc => circuit/GSRSensor-1opamp.asc
rename : GSRSensor.asc => circuit/GSRSensor.asc
rename : GSR_Pulse.sch => circuit/GSR_Pulse.sch
rename : Makefile => circuit/Makefile
rename : Noise.asc => circuit/Noise.asc
rename : Noise.asy => circuit/Noise.asy
rename : PTSensor.asc => circuit/PTSensor.asc
rename : Regulation_Breath.sch => circuit/Regulation_Breath.sch
rename : board.net => circuit/board.net
rename : board.pcb => circuit/board.pcb
rename : project => circuit/project
add source code. Add PDFs.
Merge with GitHub