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Sigh v. i. [imp. & p. p. {Sighed}; p. pr. & vb. n. {Sighing}.]
1. To inhale a larger quantity of air than usual,
and immediately expel it; to make a deep single
audible respiration, especially as the result or
involuntary expression of fatigue, exhaustion,
grief, sorrow, or the like.
[1913 Webster]
Description:
These are instructions for building a home monitoring system that measures and 'collects' sighs. The result is a physical visualization of the amount of sighing, for personal use in a domestic environment.
The project is in two parts. The first part is a stationary unit, which inflates a large red air bladder upon receiving the appropriate signal. The second part is a mobile unit, worn by the user, which monitors breathing (via a chest strap) and communicates a signal to the stationary unit wirelessly when a sigh is detected.
Assumptions:
1. You have a basic understanding of construction and fabrication techniques,
as well as access to the appropriate tools and facilities.
2. You have a working knowledge of physical computing (reading circuit diagrams)
3. You are overwhelmed with the anxiety of living in a failing state, and frustrated
that most of your household objects address only physical rather than emotional health.
1. To inhale a larger quantity of air than usual,
and immediately expel it; to make a deep single
audible respiration, especially as the result or
involuntary expression of fatigue, exhaustion,
grief, sorrow, or the like.
[1913 Webster]
Description:
These are instructions for building a home monitoring system that measures and 'collects' sighs. The result is a physical visualization of the amount of sighing, for personal use in a domestic environment.
The project is in two parts. The first part is a stationary unit, which inflates a large red air bladder upon receiving the appropriate signal. The second part is a mobile unit, worn by the user, which monitors breathing (via a chest strap) and communicates a signal to the stationary unit wirelessly when a sigh is detected.
Assumptions:
1. You have a basic understanding of construction and fabrication techniques,
as well as access to the appropriate tools and facilities.
2. You have a working knowledge of physical computing (reading circuit diagrams)
3. You are overwhelmed with the anxiety of living in a failing state, and frustrated
that most of your household objects address only physical rather than emotional health.
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Signing UpStep 1Material Needed
Here is an overview of the materials that will be needed.
Each individual page has more details and links on where you can purchase some of these materials.
Physical Materials:
> 1, 4x8 Sheet of Plywood. I used a piece of shop-grade maple ply.
> 2, 2x2 for the structural frame
> ~2 yards of red nylon strap fabric
> Some loose red fabric from a fabric store
> Latex tubing (Inner Diameter: 1/8", Outer: 1/4")
> Wood Screws ( 5/16, 3", 4" )
> 1 Rechargeable battery powered air pump (Coleman Rechargeable Quick-Pump)
> 1 unidirectional "Check Valve"
> A piece of a garden hose
> Liquid Latex & Red Pigment, or a large red balloon of some kind.
Electronics, Misc:
> 1, 20cm Stretch Sensor
> 1 red RCA cable, Male and female headers
> 1 10K Potentiometer with large sized knob
> 1 3-way toggle switch
> 2 Arduino Microcontrollers (Diecimille or newer)
> 2 9V battery clips with 5mm (center positive) male jacks.
> 2 xBee wireless modules
> 2 xBee shiels from LadyAda
> 1 FTDI cable for programming the xBees
> 1 LMC662, "rail-to-rail" OpAmp chip
> Misc Electronics components (see circuit diagrams for details).
Each individual page has more details and links on where you can purchase some of these materials.
Physical Materials:
> 1, 4x8 Sheet of Plywood. I used a piece of shop-grade maple ply.
> 2, 2x2 for the structural frame
> ~2 yards of red nylon strap fabric
> Some loose red fabric from a fabric store
> Latex tubing (Inner Diameter: 1/8", Outer: 1/4")
> Wood Screws ( 5/16, 3", 4" )
> 1 Rechargeable battery powered air pump (Coleman Rechargeable Quick-Pump)
> 1 unidirectional "Check Valve"
> A piece of a garden hose
> Liquid Latex & Red Pigment, or a large red balloon of some kind.
Electronics, Misc:
> 1, 20cm Stretch Sensor
> 1 red RCA cable, Male and female headers
> 1 10K Potentiometer with large sized knob
> 1 3-way toggle switch
> 2 Arduino Microcontrollers (Diecimille or newer)
> 2 9V battery clips with 5mm (center positive) male jacks.
> 2 xBee wireless modules
> 2 xBee shiels from LadyAda
> 1 FTDI cable for programming the xBees
> 1 LMC662, "rail-to-rail" OpAmp chip
> Misc Electronics components (see circuit diagrams for details).
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amperage and current mean the same thing. when you put the two batteries in parallel you get a higher amperage/current at the same *voltage* than that of a single battery.
consequently, you get a higher voltage and the same current when putting the batteries in series.
batteries in series will
- will deliver the current that one battery can nominally deliver and
- the overall voltage will be the voltages of all batteries added up.
batteries in parallel will as a unit
- have the nominal battery voltage of a single battery and
- deliver a current which is the sum of all battery currents.
these are generalisations, take them with a grain of salt please. and never ever make a mashup of non-identical batteries, unless you know what you are doing and not only think that you know what you are doing....
That kind of Contradicts itself,Amperage is current,The voltage will stay the Same but the current will be doubled,to about 1.6 Amps