EDUCATOR PORTAL

PROJECT MATERIALS

Piper Computer Kit

6 Wires (3 blue, 3 yellow)

2 LEDs (1 red, 1 blue)

Push Button

Breadboard

PROJECT RESOURCES

Concepts

Students will create states (turning a pin on/off), sounds and sequences. They use a ‘repeat while’ block to check the status of the button press.

Troubleshooting Tips

• Students may make mistakes on the pin numbers. If you don’t hear any sounds, make sure the volume is turned up.
• The block ‘repeat while Pin 24 is On’ is like an event block. All the codes blocks placed inside will run while the button is pushed.
• The block weight until pin 24 is off is similar to a weight time block but it is an event. The code will stop running until the button is released.

PROJECT STEPS

Step 1 Get your stuff!

Take out the inventory you see in the picture below.

Step 2 Build your circuit

Carefully study the wiring diagram. All cables must be connected exactly as seen in the image. If the LED does not work, try turning it over.

GPIO Setup Green LED Pins: 39, 37
Red LED Pins: 31, 29

Push Button: 35, 33

Step 3 Green first

First turn the green light on and the red light off. Test your code by pressing Start.

Step 4 Then red

Now turn the red light off and the green light on. Test your code again.

Step 5 Get them blinking

Add a Repeat Forever block and your lights will blink red and green. Test the code.

Step 6 Add the button and customize the blinking

Add two Wait blocks so the lights will blink slowly and a While loop that checks if pin 33 is on. When the button is pressed (pin 33) the game will wait.

Step 7 Add sounds

In the Sounds library, drag the Play block into the Repeat While block.

Step 8 Select a sound

Select the synth block and drag it inside the Play block. Change the sound by clicking on synth1.

Step 9 Miss!

Add the new Wait Until block to check if we hit the button at the wrong time.

Step 10 Play the game!

Press Start and have fun!

Completed!