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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 505 · 40 questions
TalentJR

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

NameDateTime takenScore ___ / 40
  1. 1.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  2. 2.True or false: a microcontroller runs many apps at once. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  4. 4.True or false: a laptop uses very little power. (a) True (b) False
  5. 5.True or false: a laptop runs one small program. (a) True (b) False
  6. 6.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory
  8. 8.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the pins (d) the main chip
  10. 10.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the main chip (d) the USB port
  12. 12.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  13. 13.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
  15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  16. 16.Which job is done by the power LED? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  17. 17.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  18. 18.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  19. 19.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
  20. 20.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  22. 22.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the USB port (d) the power LED
  26. 26.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a plain wall switch (d) a bicycle bell
  27. 27.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the power LED (d) the USB port
  28. 28.True or false: a laptop runs many apps at once. (a) True (b) False
  29. 29.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  30. 30.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a bicycle bell (d) a spinning top
  31. 31.Which of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a spinning top (d) a wind-up toy
  32. 32.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  33. 33.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  35. 35.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) keeps the voltage steady
  36. 36.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a smart watch (d) a bicycle bell
  37. 37.True or false: a laptop needs much more power. (a) False (b) True
  38. 38.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the voltage regulator (c) the reset button (d) the power LED
  39. 39.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) the board breaks (d) it deletes itself
  40. 40.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. True
  2. False
  3. laptop
  4. False
  5. False
  6. Yes
  7. flash memory
  8. Yes
  9. the pins
  10. No
  11. the USB port
  12. False
  13. Yes
  14. USB or a 9 V battery
  15. microcontroller
  16. shows the board is on
  17. laptop
  18. connect sensors and LEDs
  19. a computer on one chip
  20. No
  21. True
  22. Yes
  23. No
  24. laptop
  25. the voltage regulator
  26. a washing machine
  27. the main chip
  28. True
  29. True
  30. a TV remote
  31. a smart watch
  32. False
  33. False
  34. microcontroller
  35. runs the program
  36. a bicycle bell
  37. True
  38. the reset button
  39. it starts again
  40. No

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