Chapter 7. Blinky Pi

Setting up your Pi for physical computing

GPIO pins

Breaking out the GPIO pins to a breadboard

Breadboard basics

Building the LED circuit

Step 1. Connect the jumper from GPIO pin 21

Step 2. Add the red LED

Step 3. Connect a resistor

Software: blinkLED program

Running the program

blinkLED: how it works

Adding more LEDs

Building the circuit

Multiple LEDs: program it!

Challenges

Wave pattern

Simon Says

Random blinking

Summary