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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 671 · 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 candle usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a microcontroller runs one small program. (a) False (b) True
  3. 3.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  4. 4.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  5. 5.Which job is done by the main chip? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  6. 6.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the reset button (c) the USB port (d) the pins
  7. 7.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  8. 8.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  9. 9.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the reset button (c) the pins (d) the power LED
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  12. 12.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  13. 13.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  14. 14.Which job is done by the pins? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  15. 15.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  16. 16.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a microwave oven (d) a wind-up toy
  18. 18.Which of these has no microcontroller inside? (a) a candle (b) a digital thermometer (c) a digital alarm clock (d) a toy robot
  19. 19.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a spinning top (d) a digital alarm clock
  20. 20.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  21. 21.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  22. 22.True or false: a microcontroller uses very little power. (a) False (b) True
  23. 23.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the power LED (c) the voltage regulator (d) the USB port
  25. 25.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a bicycle bell (d) a spinning top
  27. 27.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  28. 28.True or false: a laptop has a built-in keyboard. (a) True (b) False
  29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
  30. 30.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  31. 31.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the reset button (d) the power LED
  32. 32.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  33. 33.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  34. 34.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a microwave oven (d) a candle
  35. 35.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  37. 37.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) shows the board is on
  38. 38.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  39. 39.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller

Answer key

  1. No
  2. True
  3. False
  4. uploaded over USB
  5. runs the program
  6. the USB port
  7. microcontroller
  8. keeps the voltage steady
  9. True
  10. the pins
  11. the main chip
  12. microcontroller
  13. laptop
  14. connect sensors and LEDs
  15. True
  16. Yes
  17. a wind-up toy
  18. a candle
  19. a spinning top
  20. True
  21. Yes
  22. True
  23. a computer on one chip
  24. the voltage regulator
  25. Yes
  26. a toy robot
  27. True
  28. True
  29. it starts again
  30. shows the board is on
  31. the reset button
  32. Yes
  33. laptop
  34. a microwave oven
  35. False
  36. No
  37. brings power and code
  38. No
  39. True
  40. microcontroller

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