Hardware Reference
In-Depth Information
Supplies for Chapter 7
DISTRIbuTOR KEy
• A
Arduino Store (
http://store.arduino.cc/ww
)
• AF
Adafruit (
http://adafruit.com
)
• D
Digi-Key (
www.digikey.com
)
• F
Farnell (
www.farnell.com
)
• J
Jameco (
http://jameco.com
)
• MS
Maker SHED (
www.makershed.com
)
• P
Pololu (
www.pololu.com
)
• PX
Parallax (
www.parallax.com
)
• RS
RS (
www.rs-online.com
)
• SF
SparkFun (
www.sparkfun.com
)
• SS
Seeed Studio (
www.seeedstudio.com
)
PROJECT 13: Reporting Toxic Chemicals in the Shop
»
2 basic Xbee breadboard circuits
As described above.
»
1 5V regulator
J
51262
, D
LM7805CT-ND
, SF
COM-
00107,
F
1860277
, RS
298-8514
»
1 9-12V DC power supply
Either a 9V battery or plug-in
supply will do.
J
170245,
SF
TOL-00298,
AF
63,
F
636363,
P
1463
»
1 Hanwei gas sensor
Hanwei makes a wide range of
gas sensors, and many of the retailers in this topic carry
them. MQ-7 detects carbon monoxide; MQ-3 detects
alcohol; MQ-6 detects propane and related gases;
MG811 detects carbon dioxide. They all have similar
operations, so pick one that you're most interested in.
SF
SEN-08880, SEN-09404, or SEN-09405,
P
1480,
1634, 1633, 1481, 1482, or 1483,
PX
605-00007, 605-
00008, 605-00009, 605-00010, or 605-00011
»
1 gas sensor breakout board
The Hanwei sensors
have a pin layout that's not friendly to a breadboard, so
these boards correct that. Pololu and Spark Fun both
make a model.
SF
BOB-08891,
P
1479 or 1639
»
1 10-kilohm resistor
D
10KQBK-ND,
J
29911,
F
9337687,
RS
707-8906
»
1 Arduino Ethernet board
A
A000050
Alternatively, an Uno-compatible board (see Chapter 2)
with an Ethernet shield will work.
SF
DEV-09026,
J
2124242,
A
139,
AF
201,
F
1848680
»
1 Arduino wireless shield
Alternatively, basic XBee
breadboard circuit (see above) will work.
A
A000064 or A000065. Alternatives:
SF
WRL-09976,
AF
126,
F
1848697,
RS
696-1670,
SS
WLS114A0P
»
1 cymbal monkey
The one used here is a Charlie
Chimp, ordered from the Aboyd Company (
www.aboyd.
com
), part number ABC 40-1006.
bASIC XbEE bREADbOARD CIRCuIT
Several of the projects in this chapter use XBee
radios. In each project, you have the option of using
convenience modules like the Arduino wireless shield,
Spark Fun's XBee Explorer Regulated, or the LilyPad
XBee. If you choose not to use those parts, you can
build a basic XBee breadboard circuit. Variations on
this circuit are shown in Figures 7-5, 7-6, 7-8, and 7-14.
The basic parts for it are listed below.
»
1 solderless breadboard
D
438-1045-ND,
J
20723 or 20601,
SF
PRT-00137,
F
4692810,
AF
64,
SS
STR101C2M or STR102C2M,
MS
MKKN2
»
1 Digi Xbee 802.15.4 RF module
J
2113375,
SF
WRL-08664,
AF
128,
F
1546394,
SS
WLS113A4M,
MS
MKAD14
»
1
3.3V regulator
J
242115,
D
576-1134-ND,
SF
COM-00526,
F
1703357,
RS
534-3021
»
1 Xbee breakout board
J
32403
,
SF
BOB-08276,
AF
127
»
2 rows of 0.1-inch header pins
J
103377,
D
A26509-20ND,
SF
PRT-00116,
F
1593411
»
2 rows of
2mm female headers
J
2037747,
D
3M9406-ND,
F
1776193
»
1 1µF capacitor
J
94161,
D
P10312-ND,
F
8126933,
RS
475-9009
»
1 10µF capacitor
J
29891,
D
P11212-ND,
F
1144605,
RS
715-1638
»
2 LEDs
D
160-1144-ND or 160-1665-ND,
J
34761 or
94511,
F
1015878,
RS
247-1662 or 826-830,
SF
COM-09592 or COM-09590
»
2 220-ohm resistors
D
220QBK-ND,
J
690700,
F
9337792,
RS
707-8842
NOTE:
If your monkey uses a 3V power supply (such as two
D batteries), you won't need the 3.3V regulator. Make sure
that there's adequate amperage supplied for the radios. If you
connect the circuit as shown and the radios behave erratically,
the monkey's motor may be drawing all the power. If so, use a
separate power supply for the radio circuit.
»
1 potentiometer
J
29082,
SF
COM-09939,
F
350072,
RS
522-0625
»
1 TIP120 Darlington NPN transistor
D
TIP120-ND,
J
32993,
F
9804005
»
1 1N4004 power diode
D
1N4004-E3 or 23GI-ND,
J
35992,
F
9556109,
RS
628-9029
»
1 1-kilohm resistor
D
1.0KQBK-ND,
J
29663,
F
1735061,
RS
707-8669
