Component:
Image Reference:
Transistor
P2N2222AG
a1
a3
a2
Jumper Wire
Jumper Wire
Pin 9
j2
Jumper Wire
Jumper Wire
Jumper Wire
5V
Jumper Wire
GND
Diode
1N4148
a3
GND
b7
b11
e7
e11
e7
e11
DC Motor
5V
330
Ω
Resistor
g2
e2
e1
a7
+
+
e3
d11
At this point you're probably starting to get your own ideas for circuits that do fun things, or help solve a real problem. Excellent! Here are some tips on programming in general.
Most of the sketches you write will be a loop with some or all of these steps:
1. Perform some sort of input 2. Make some calculations or decisions 3. Perform some sort of output 4. Repeat! (Or not!)
We've already shown you how to use a bunch of different input sensors and output devices (and we still have a few more to go). Feel free to make use of the examples in your own sketches - this is the whole idea behind the "Open Source" movement.
It's usually pretty easy to pull pieces of different sketches together, just open them in two windows, and copy and paste between them. This is one of the reasons we've been promoting "good programming habits". Things like using constants for pin numbers, and breaking your sketch into functions, make it much easier to re-use your code in new sketches. For example, if you pull in two pieces of code that use the same pin, you can easily change one of the constants to a new pin. (Don't forget that not all of the pins support
analogWrite()
; the compatible pins are marked on your board.)
If you need help, there are internet forums where you can ask questions. Try Arduino's forum at
arduino.cc/forum
, and SparkFun's at
forum.sparkfun.com
.
When you're ready to move to more advanced topics, take a look at Arduino's tutorials page at
arduino.cc/en/tutorial
. Many of SparkFun's more advanced
products were programmed with Arduino, (allowing you to easily modify them), or have Arduino examples for them. See our product pages for info.
Finally, when you create something really cool, consider sharing it with the world so that others can learn from your genius. Be sure to let us know on
https://www.sparkfun.com/project_calls
so we can put it on our home page!
Putting it all together:
P2N2
222A
COLLECTOR
BASE
EMITTER
E
B
C
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Summary of Contents for RedBoard
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