Parts and Suppliers¶
// Do we really need this?
Parts¶
The following tables list where you can find the parts used in this book. We have listed only one or two sources here, but you can often find a given part in many places.
United States suppliers
Supplier |
Website |
Notes |
|---|---|---|
Adafruit |
Good for modules and parts |
|
Amazon |
Carries everything |
|
Digikey |
Wide range of components |
|
MakerShed |
Good for modules, kits, and tools |
|
RadioShack |
Walk-in stores |
|
SeeedStudio |
Low-cost modules |
|
SparkFun |
Good for modules and parts |
Other suppliers
Supplier |
Website |
Notes |
|---|---|---|
Element14 |
World-wide BeagleBoard.org-compliant clone of BeagleBone Black, carries many accessories |
Prototyping Equipment¶
Many of the hardware projects in this book use jumper wires and a breadboard. We prefer the preformed wires that lie flat on the board. <<parts_jumper>> lists places with jumper wires, and <<parts_breadboard>> shows where you can get breadboards.
Jumper wires
Breadboards
Supplier |
Website |
|---|---|
Amazon |
|
Digikey |
|
RadioShack |
|
SparkFun |
|
CircuitCo |
If you want something more permanent, try Adafruit’s Perma-Proto Breadboard, laid out like a breadboard.
Resistors¶
We use 220 , 1 k, 4.7 k, 10 k, 20 k, and 22 k resistors in this book. All are 0.25 W. The easiest way to get all these, and many more, is to order SparkFun’s Resistor Kit. It’s a great way to be ready for future projects, because it has 500 resistors. RadioShack’s 500-piece Resistor Assortment is a bit more expensive, but it has a wider variety of resistors.
If you don’t need an entire kit of resistors, you can order a la carte from a number of places. RadioShack has 5-packs, and DigiKey has more than a quarter million through-hole resistors at good prices, but make sure you are ordering the right one.
You can find the 10 k trimpot (or variable resistor) at SparkFun, Adafruit, or RadioShack.
Flex resistors (sometimes called flex sensors or bend sensors) are available at SparkFun and Adafruit.
Transistors and Diodes¶
The 2N3904 is a common NPN transistor that you can get almost anywhere. Even Amazon has it. Adafruit has a nice 10-pack. SparkFun lets you buy them one at a time. DigiKey will gladly sell you 100,000.
The 1N4001 is a popular 1A diode. Buy one at SparkFun, 10 at Adafruit, 25 at RadioShack, or 40,000 at DigiKey.
Integrated Circuits¶
The PCA9306 is a small integrated circuit (IC) that converts voltage levels between 3.3 V and 5 V. You can get it cheaply in large quantities from DigiKey, but it’s in a very small, hard-to-use, surface-mount package. Instead, you can get it from SparkFun on a Breakout board, which plugs into a breadboard.
The L293D is an H-bridge IC with which you can control large loads (such as motors) in both directions. SparkFun, Adafruit, and DigiKey all have it in a DIP package that easily plugs into a breadboard.
The ULN2003 is a 7 darlington NPN transistor IC array used to drive motors one way. You can get it from DigiKey. A possible substitution is ULN2803 available from SparkFun and Adafruit.
The TMP102 is an I^2^C-based digital temperature sensor. You can buy them in bulk from DigiKey, but it’s too small for a breadboard. SparkFun sells it on a breakout board that works well with a breadboard.
The DS18B20 is a one-wire digital temperature sensor that looks like a three-terminal transistor. Both SparkFun and Adafruit carry it.
Opto-Electronics¶
LEDs are light-emitting diodes. LEDs come in a wide range of colors, brightnesses, and styles. You can get a basic red LED at SparkFun, Adafuit, RadioShack, and DigiKey.
Many places carry bicolor LED matrices, but be sure to get one with an I^2^C interface. Adafruit is where I got mine.
Capes¶
There are a number of sources for capes for BeagleBone Black. BeagleBoard.org keeps a current list.
Miscellaneous¶
Here are some things that don’t fit in the other categories.
.Miscellaneous
3.3 V FTDI cable |
|
USB WiFi adapter |
|
Female HDMI to male microHDMI adapter |
|
HDMI cable |
|
Micro HDMI to HDMI cable |
|
HDMI to DVI Cable |
|
HDMI monitor |
|
Powered USB hub |
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Keyboard with USB hub |
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Soldering iron |
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Oscilloscope |
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Multimeter |
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PowerSwitch Tail II |
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Servo motor |
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5 V power supply |
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3 V to 5 V motor |
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3 V to 5 V bipolar stepper motor |
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3 V to 5 V unipolar stepper motor |
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Pushbutton switch |
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Magnetic reed switch |
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LV-MaxSonar-EZ1 Sonar Range Finder |
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HC-SR04 Ultrsonic Range Sensor |
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Rotary encoder |
|
GPS receiver |
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BLE USB dongle |
|
SensorTag |
|
Syba SD-CM-UAUD USB Stereo Audio Adapter |
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Sabrent External Sound Box USB-SBCV |
|
Vantec USB External 7.1 Channel Audio Adapter |
|
Nokia 5110 LCD |
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BeagleBone LCD7 |
|
MiniDisplay Cape |