CSCI 235 & 182 — Arduino starting with Tinkercad Circuits

What you do with an Arudino (and a computer)

• Find witches

Arduino

• Language reference
• Libraries
• Hardware
  Arduino Uno
  • Arduino Mega
  • Adafruit Feather
  • Adafruit FLORA

Hardware

• Button
• Switch
• Potentiometer
• Breadboard
• Light-Emitting Diodes (LEDs) — never use without a resitor
• Processing tutorial on electronics

Getting started with Tinkercad Circuits

• Tinkercad Circuits
• Tinkercad Learn (go to Circuits>

Things to do

• Using a simulated Arduino
  • Add Arduino Uno R3
  • Bring up code editor
  • Upload & Run
  • Change time LED is high to 0.2 secs
  • Get out of block programming mode
  • Do real C: Add definition for LEDPIN (as const int) and modify looploop()
• Adding a breadboard
  • In + components add a small breadkboard
  • 
  • Wire exactly as shown above. Use the same colors for wire.
  • Make sure you have no short circuits!
• Adding an LED
  • In + components add a 330 Ω resistor and an LED.
  • Wire them into Pin 4. Be sure the cathode of the LED is connected to ground.
  • 
  • Simulate
• Adding a switch
  • Use pin 2.
  • Pushbutton switches (aka tactile button switches) are tricky. Be sure you have them oriented corrected. Also, if you step on them, throw them away.
  • 
  • Modify Arduino program to use Pin 2. Use pinMode() to enable the internal pullup.
  • Using digitalRead() to read Pin 2.
  • When the button is switched, light up the LED.
• Adding a speaker
  • Replace the LED with a Piezoelectric buzzer.
  • 
  • If you turn the Piezo off and on quickly, it will make a tone. Unfortunately, sound is not enabled on the computers in the lab.
• If time permits
  • Make a stop light
  • Make a button that flashing a LED
  • Make a button that flashing a LED for 60 seconds after a button is pressed