You are previewing Make: Electronics.

Make: Electronics

Cover of Make: Electronics by Charles Platt Published by Maker Media, Inc
  1. Preface
  2. 1. Experiencing Electricity
    1. Shopping List: Experiments 1 Through 5
    2. Experiment 1: Taste the Power!
    3. Experiment 2: Let’s Abuse a Battery!
    4. Experiment 3: Your First Circuit
    5. Experiment 4: Varying the Voltage
    6. Experiment 5: Let’s Make a Battery
  3. 2. Switching Basics and More
    1. Shopping List: Experiments 6 Through 11
    2. Experiment 6: Very Simple Switching
    3. Experiment 7: Relay-Driven LEDs
    4. Experiment 8: A Relay Oscillator
    5. Experiment 9: Time and Capacitors
    6. Experiment 10: Transistor Switching
    7. Experiment 11: A Modular Project
  4. 3. Getting Somewhat More Serious
    1. Shopping List: Experiments 12 Through 15
    2. Experiment 12: Joining Two Wires Together
    3. Experiment 13: Broil an LED
    4. Experiment 14: A Pulsing Glow
    5. Experiment 15: Intrusion Alarm Revisited
  5. 4. Chips, Ahoy!
    1. Shopping List: Experiments 16 Through 24
    2. Experiment 16: Emitting a Pulse
    3. Experiment 17: Set Your Tone
    4. Experiment 18: Reaction Timer
    5. Experiment 19: Learning Logic
    6. Experiment 20: A Powerful Combination
    7. Experiment 21: Race to Place
    8. Experiment 22: Flipping and Bouncing
    9. Experiment 23: Nice Dice
    10. Experiment 24: Intrusion Alarm Completed
  6. 5. What Next?
    1. Shopping List: Experiments 25 Through 36
    2. Customizing Your Work Area
    3. Reference Sources
    4. Experiment 25: Magnetism
    5. Experiment 26: Tabletop Power Generation
    6. Experiment 27: Loudspeaker Destruction
    7. Experiment 28: Making a Coil React
    8. Experiment 29: Filtering Frequencies
    9. Experiment 30: Fuzz
    10. Experiment 31: One Radio, No Solder, No Power
    11. Experiment 32: A Little Robot Cart
    12. Experiment 33: Moving in Steps
    13. Experiment 34: Hardware Meets Software
    14. Experiment 35: Checking the Real World
    15. Experiment 36: The Lock, Revisited
    16. In Closing
  7. Appendix. Online Retail Sources and Manufacturers
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Experiment 32: A Little Robot Cart

Robotics is another application of electronics that deserves a book in itself—or several books. So, once again, I’m going to give you an introduction followed by some points that you can follow if you want to go further. As always, I will start with the simplest possible device, which in the world of robotics is a cart that finds its way around your living room.

You will need:

  • SPST or SPDT microswitches requiring minimal pressure to activate them. A force between 0.02 and 0.1 newtons would be ideal. Quantity: 2. See Figure 5-74.

    mkel_05_074.pdf

    Figure 5-74. A microswitch has a small button (at the front, righthand side in ...

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