Exploring your Lab Setup

Notes

• Start a new sketch (File -> New Sketch)
• Copy and paste this file.
  • Look at the board and the code
    There is a blue LED on pin D5
    • There is a green LED on pin D6
    • There is a red LED on pin D7
    • There is a push button connected to pin D4 and pin D2
    • There is a photo-resistor connected to pin A6
  • For now initialize the color pins
  • Functions are just as you would expect
    • Write a function that will blink an LED given
      • The LED number
      • A delay
    • Call this routine from loop for each of the colors in turn.
  • If we want, we can read from an digital or analog pin too
    • You need to set the mode to be INPUT
    • then use int digitalRead(pin_number); to get the value
    • In the main loop, read the SWITCH_PIN and print the status.
      • This is problematic for several reasons
      • button bounce
      • missing the button press
      • We will explore this further in the future.
    • We can read from the analog pin
      • You don't appear to need to set the pin mode for analog pins
      • int analogRead(pin_number);
      • This reads the voltage on the pin
        • 0 = no voltage
        • 1025 = +5V
    • In the main loop, read the value from the photo-resistor and print this.
      • Cover, uncover, and shine your phone's bright light on the phototypesetter.