Context Navigation

Lesson1

-                      v1
+                      v2
 If you followed the instructions above, you have already seen and run an Arduino program: blinky (if you haven't, please do so now).  Arduino developers refer to programs as "sketches".  Sketches are written in C and C++ which are the most popular languages for programming embedded computers (computers without screens and keyboards).  Java is derived from C/C++ and is extremely similar; if you know Java, you will have no problem with C/C++.  A good introduction to Arduino programming and the blinky example program is [http://www.ladyada.net/learn/arduino/lesson2.html here] (please follow the link and read the introduction).
+You should now be familiar with the basic structure of an Arduino sketch including the setup() and loop() functions and you should be able to compile a sketch and load it onto your Arduino Uno.
+== Activities ==
+You should now be familiar with the basic structure of an Arduino sketch including the setup() and loop() functions and you should be able to compile a sketch and load it onto your Arduino Uno.  Try the following:
+* vary the speed of the blinking LED by changing the delays
+* vary the brightness of the LED (by using a variable duty cycle)
 == Other Stuff ==