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Robotics and electronics13 books

Breadboard Circuits

Fifteen experiments with batteries, LEDs, switches and sensors

  • Free ebook
  • Beginner
  • 28 pages
  • 112 KB
  • PDF, English
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About this ebook

What you will learn

Learn how a breadboard is joined inside, how to read a circuit diagram and how to turn it into a working circuit. Then build fifteen safe experiments on batteries of 9 V or less, from a first LED to a night lamp, a water level indicator, a 555 blinker, logic gates, alarms and a traffic light model, and learn how to find and fix faults.

Who it is for

Students of class 5 to 10 and beginners.

Contents

  1. Meet the breadboard
  2. Parts, symbols and safe power
  3. LEDs and resistors
  4. Switches, buzzers and motors
  5. The transistor: a small current controls a big one
  6. Water, rain and heat
  7. The 555 timer
  8. Logic gates
  9. Two projects: a burglar alarm and a traffic light
  10. When a circuit does not work

At the end of the book

  • Practice questionsTo check what you have learnt, with the answers after them.
  • GlossaryThe key words of the book, each explained in one sentence.
  • Easy EnglishShort sentences and everyday words, with each new word explained the first time.

Reading, printing and sharing

  1. On a phone or computerTap Read online to open the book in your browser, or Download to keep it and read it without the internet.
  2. To printThe pages are A5, half the size of A4. Choose two pages per sheet in the print settings to fit two pages on each A4 sheet.
  3. To shareSend the link to this page, or the PDF itself, to friends, classmates or students. The book is free for everyone.

Safety first. Electronics in these books runs on cells and batteries of up to 12 V, never on mains electricity. Soldering, hot glue, cutters and chemicals need an adult nearby for younger students.

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