1. Introduction to the Arduino
Web site:
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software

2. What we’ll do with it:
Communicate with it
Program it
Interface to it
Build on it
Learn to
love it!

3. Communicate
Single USB cable
Provides power (5V) and coms

4. Install their software: arduino.cc/en/main/software
Communicate
Install their software: arduino.cc/en/main/software
This is an “IDE”: Integrated Development Environment
Text editor
Compiler
Loader
helper

5. Interface to it
The software works on PC’s and Macs
You won’t do anything without this software

6. Program
Arduino calls their programs “Sketches”
These are lists of commands that the Arduino will execute
There are lots of sample sketches available online for download and modification
Once in the IDE,
the sketch is uploaded
to Arduino

7. Program
The program consists of two parts (I have no idea why they use “void”):
1) the setup
Establish what hardware will be used
Initialize variables
2) the executables (loop)
Controls
Outputs
Inputs
storage

11. There are several ways to make conditional branches/loops:
If else (like the BASIC IF/THEN) but uses {} for the “then”
For (similar to BASIC FOR) but different syntax

12. We can interface using both digital or Analog inputs/outputs
PinMode sets a pin to input or output
digitalWrite sets the output high or low (1 or 0)
Int digitalRead returns a 0 or 1 depending on whether the input is high or low
It’s important to define the role before using the “digital” commands and don’t cross them.

13. For anything that provides a varying voltage as it’s signal, you’ll need an analog input
for normal analog; how many bits is the A/D converter?
It can also do a pseudo analog output (0-5V) using “pulse width modulation”; pretty clever

18. Please try to avoid clipping the leads on anything!
If they are the same on the LEDs, you can’t tell the + from the –
Bending is okay

19. Project #1: a blinking LED

20. We’ll let you cheat and use the breadboard sheet! But only for this one. You have to figure out the rest yourself.

21. Here is the code; let’s look it over:
Comment section is a great idea
Define the pin
Turn it on; turn it off; repeat, repeat, repeat

22. Modify the program: Change blinking rate Blink two that alternate
Change intensity (this uses the pulse width modulation)

23. Project #2: Run a motor Requires a transistor to provide more power
Use the schematic; why is the diode there?