This is the 1st draft of the inputs sheet for the wireless garden sensor for the external lab space. This can be revised as needed. Nothing in this is set in stone yet.
The ACRE LAB
PROJECT INPUT SHEET REV 01
Project: Monitor node
|
Revision:
01
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Prepared
by: Crank
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Date:
08/19/14
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Input
#
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Inputs
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Specifications
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Origin
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1.1
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Microcontroller shall be open source supported
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·
Arduino
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Usability
|
1.2
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All source software shall be open
source
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·
Arduino IDE
·
GPL License
·
Software
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Usability
|
2.1
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Sensor shall take temp readings with
+-1⁰C resolution
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·
TMP36
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Function
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2.2
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Sensor shall take adequate moisture
readings
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·
The Acre Lab
Soil Moisture Sensor V1
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Function
|
2.3
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Sensor shall take adequate light
readings in W/m2
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·
Adafruit TSL2561
Digital Luminosity/Lux/Light Sensor Breakout
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Function
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2.4
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Sensor battery charge shall last at
least 31 days
|
·
Arduino clock @
8mhz
·
2000mAH battery
·
Low-power
libraries
·
Microcontroller
sleep mode
|
Function
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2.5
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Sensor will have remote port to aid in
battery charging
|
·
Access to
outside of housing
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Function
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2.6
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Sensor will be water resistant to
typical environmental factors during typical use
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·
Water resistant
housing
·
RTV seals on
interface joints
·
Battery charging
plug
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Function
|
2.7
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Sensor will communicate wirelessly in
an unlicensed radio band
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·
NRF240L+1
Wireless Module
|
Function
|
2.8
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Sensor will communicate readings at
least every 10 minutes
|
·
Software
|
Function
|
1.3
|
Sensor shall be placed with a single
hand and no additional tools
|
·
2 prong smooth
design
|
Usability
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1.4
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Sensor shall be removed with a single
hand and no additional tools
|
·
2 prong smooth
design
|
Usability
|
1.5
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Sensor shall withstand a fall from at
least 3 ft and not break the outer housing
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·
Nylon external
housing
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Usability
|
1.6
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Sensor shall withstand a fall from at
least 3 ft and still function as intended
|
·
Nylon external
housing
·
Electronic
wiring robustness
|
Usability
|
1.7
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Sensor shall withstand temperatures at
least ranging from -20⁰C to +50⁰C
|
·
Electronics
|
Usability
|
2.9
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Sensor shall be retained in the ground
and not fall over during typical use in typical environmental conditions
|
·
2 prong smooth
design
|
Function
|
2.10
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Sensor shall be able to communicate
with other sensors
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·
Software
·
NRF240L+1
Wireless Module
|
Function
|
2.11
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Sensor range shall be at least 100ft in
no obstacles operating condition
|
·
NRF240L+1
Wireless Module
|
Function
|
3.1
|
Sensor cost shall not cost more than
$20
|
·
Arduino IDE
·
GPL License
·
Software
·
NRF240L+1
Wireless Module
·
2000mAH battery
·
Adafruit TSL2561
Digital Luminosity/Lux/Light Sensor Breakout
·
The Acre Lab
Soil Moisture Sensor V1
|
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