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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 76 · 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 laptop needs much more power. (a) False (b) True
  2. 2.True or false: a laptop uses very little power. (a) True (b) False
  3. 3.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the reset button (c) the pins (d) the power LED
  4. 4.True or false: a laptop runs one small program. (a) False (b) True
  5. 5.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  6. 6.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  7. 7.True or false: a microcontroller needs much more power. (a) False (b) True
  8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  9. 9.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  11. 11.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  13. 13.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  14. 14.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  15. 15.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the power LED (d) the USB port
  16. 16.Which job is done by the main chip? (a) keeps the voltage steady (b) runs the program (c) brings power and code (d) restarts the program
  17. 17.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a smart watch (d) a bicycle bell
  18. 18.True or false: a microcontroller has no screen of its own. (a) False (b) True
  19. 19.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  20. 20.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which job is done by the power LED? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) shows the board is on
  23. 23.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  24. 24.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a toy robot (d) a hand pump
  25. 25.True or false: a microcontroller runs many apps at once. (a) False (b) True
  26. 26.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  27. 27.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the power LED (c) the reset button (d) the pins
  28. 28.True or false: a laptop has no screen of its own. (a) True (b) False
  29. 29.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the power LED (d) the USB cable
  30. 30.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  31. 31.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  32. 32.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the pins (d) the power LED
  33. 33.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the power LED (d) the main chip
  34. 34.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  35. 35.Which job is done by the voltage regulator? (a) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  36. 36.Which of these has no microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a microwave oven (d) a TV remote
  37. 37.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  38. 38.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  39. 39.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  40. 40.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a bicycle bell (d) a washing machine

Answer key

  1. True
  2. False
  3. the pins
  4. False
  5. False
  6. uploaded over USB
  7. False
  8. it starts again
  9. Yes
  10. a computer on one chip
  11. No
  12. True
  13. laptop
  14. True
  15. the main chip
  16. runs the program
  17. a smart watch
  18. True
  19. microcontroller
  20. No
  21. No
  22. shows the board is on
  23. microcontroller
  24. a hand pump
  25. False
  26. True
  27. the reset button
  28. False
  29. flash memory
  30. restarts the program
  31. False
  32. the power LED
  33. the USB port
  34. No
  35. keeps the voltage steady
  36. a wind-up toy
  37. False
  38. True
  39. False
  40. a washing machine

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