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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 628 · 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.

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

Answer key

  1. brings power and code
  2. a computer on one chip
  3. a toy robot
  4. microcontroller
  5. it starts again
  6. a plain wall switch
  7. a digital thermometer
  8. True
  9. a spinning top
  10. connect sensors and LEDs
  11. False
  12. keeps the voltage steady
  13. Yes
  14. True
  15. False
  16. flash memory
  17. restarts the program
  18. True
  19. microcontroller
  20. laptop
  21. a bicycle bell
  22. No
  23. uploaded over USB
  24. No
  25. a candle
  26. No
  27. microcontroller
  28. the power LED
  29. the voltage regulator
  30. True
  31. True
  32. False
  33. False
  34. Yes
  35. No
  36. a digital alarm clock
  37. laptop
  38. Yes
  39. False
  40. Yes

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