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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 359 · 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.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  5. 5.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  6. 6.True or false: a microcontroller uses very little power. (a) False (b) True
  7. 7.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  8. 8.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  9. 9.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  10. 10.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  11. 11.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a TV remote (d) a bicycle bell
  12. 12.🤖 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
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the reset button (c) the pins (d) the main chip
  14. 14.True or false: a microcontroller runs one small program. (a) True (b) False
  15. 15.True or false: a laptop has no screen of its own. (a) False (b) True
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  17. 17.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the pins (d) the USB port
  19. 19.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a laptop runs one small program. (a) False (b) True
  22. 22.True or false: a microcontroller has no screen of its own. (a) False (b) True
  23. 23.Which of these has no microcontroller inside? (a) a toy robot (b) a hand pump (c) a microwave oven (d) a smart watch
  24. 24.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) typed on the chip (d) drawn with a pen
  25. 25.True or false: a microcontroller runs many apps at once. (a) False (b) True
  26. 26.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  27. 27.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  28. 28.Which job is done by the pins? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  29. 29.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the main chip (d) the USB port
  30. 30.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the USB port (d) the pins
  32. 32.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a microwave oven (d) a wind-up toy
  33. 33.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a digital thermometer (d) a plain wall switch
  34. 34.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  36. 36.True or false: a laptop uses very little power. (a) True (b) False
  37. 37.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  38. 38.True or false: a candle has no microcontroller inside. (a) True (b) False
  39. 39.🤖 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
  40. 40.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a digital thermometer (d) a toy robot

Answer key

  1. Yes
  2. No
  3. keeps the voltage steady
  4. microcontroller
  5. Yes
  6. True
  7. Yes
  8. False
  9. runs the program
  10. No
  11. a TV remote
  12. a computer on one chip
  13. the main chip
  14. True
  15. False
  16. laptop
  17. Yes
  18. the USB port
  19. True
  20. Yes
  21. False
  22. True
  23. a hand pump
  24. uploaded over USB
  25. False
  26. True
  27. flash memory
  28. connect sensors and LEDs
  29. the reset button
  30. False
  31. the voltage regulator
  32. a wind-up toy
  33. a digital thermometer
  34. laptop
  35. microcontroller
  36. False
  37. No
  38. True
  39. it starts again
  40. a bicycle bell

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