Nibbles and Bits
The Care and Feeding of My Pet Arduino

by Budd Churchward - WB7FHC

Project Library

Sequencing RGB LEDs

In this project we figured out how to wire and sequence an RGB LED through it's colors. We learn about limiting resistors and pull-down resistors.

Components you will need:

  • Adruino
  • Breadboard
  • 1 RGB LED
  • 1 Mini Push Button
  • 2 470 Ω resistors

back to top

Click Image to View this Project

'My Dog Has Fleas'
A Binary Music Machine

We learn you how to pirate a mini-speaker from an old telephone and then create three sketches that demonstrate making sounds with Arduino. We also discover the power of using binary numbers by demonstrating that we can play 15 different musical notes with only 4 buttons.

Components you will need:

  • Adruino
  • Breadboard
  • 4 Mini Push Buttons
  • 4 10K Ω resistors

back to top

Click Image to View this Project

Morse Code Oscillator
and a Homemade Telegraph Key

We start by building our own telegraph key out of ordinary household items. Then we write a simple sketch that will be the ground work for more to come in this library. For now let's practice sending Morse Code.

Components you will need:

  • Adruino
  • Breadboard
  • 1 10K Ω resistor
  • 1 Spring Type clothes pin
  • 2 small bolts
  • 4 nuts
  • 1 block of wood
Tools you will probably need:
  • Glue Gun and Glue
  • Drill and Drill Bits
  • Small Screw Driver

back to top

Click Image to View this Project

Teaching Arduino to Copy Morse Code

Start with the Morse Code Oscillator Project described above and expand the sketch to copy Morse Code. This project includes a method to adjust to any sender's speed.

back to top

Click Image to View this Project