Objective of the lesson Use Blockly to create blinking lights All of you will: Control individual LEDs on the Codebug Most of you will: Animate individual LEDs on the Codebug Some of you will: Use buttons to control the LEDs on the Codebug

Go to www.codebug.org.uk Click on CREATE and then on the Blockly Tab You will see a simulation of the Codebug. The Triangular Play button can be used to run your program and view what will happen once you download to your Codebug

We can turn on individual LEDs The LEDs are called pixels We can turn on individual pixels or LEDs at coordinates x and y To turn ON an LED we set it to 1

The problem is that all of the lights come on at once We need to add pauses inbetween lights coming on Pauses are in milliseconds (ms). 1000ms = 1 second

Add a forever loop so that the lights Make it so that the same message plays if the B button is pressed Make it so that a different message plays when the B button is pressed

Challenge Loop the program so that the animation continues forever (using a while True loop) Add an ‘if do on button A pressed’ loop so that the animation only shows when the button is pressed Change the x, y coordinates to change the direction or pattern of the animation Turn pixels ON and OFF one at a time by setting the pixel to 0