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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 290 · 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.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  3. 3.Which job is done by the power LED? (a) brings power and code (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  4. 4.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  6. 6.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a wind-up toy (d) a hand pump
  7. 7.True or false: a laptop runs many apps at once. (a) True (b) False
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the pins (d) the voltage regulator
  9. 9.🤖 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
  10. 10.True or false: a laptop needs much more power. (a) False (b) True
  11. 11.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  12. 12.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the USB port (d) the reset button
  13. 13.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the voltage regulator (d) the reset button
  15. 15.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
  16. 16.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  18. 18.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a TV remote (d) a wind-up toy
  19. 19.True or false: a microcontroller uses very little power. (a) False (b) True
  20. 20.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  26. 26.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which job is done by the reset button? (a) shows the board is on (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  28. 28.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) keeps the voltage steady
  29. 29.True or false: a laptop has no screen of its own. (a) False (b) True
  30. 30.Which job is done by the pins? (a) keeps the voltage steady (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
  31. 31.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) shows the board is on (d) runs the program
  32. 32.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  33. 33.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  34. 34.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  35. 35.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a TV remote (d) a spinning top
  36. 36.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a candle (d) a bicycle bell
  37. 37.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a smart watch (d) a hand pump
  38. 38.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  39. 39.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a plain wall switch (d) a wind-up toy
  40. 40.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. microcontroller
  2. Yes
  3. shows the board is on
  4. Yes
  5. True
  6. a digital thermometer
  7. True
  8. the voltage regulator
  9. it starts again
  10. True
  11. False
  12. the power LED
  13. False
  14. the reset button
  15. flash memory
  16. uploaded over USB
  17. microcontroller
  18. a wind-up toy
  19. True
  20. Yes
  21. Yes
  22. False
  23. No
  24. Yes
  25. microcontroller
  26. No
  27. restarts the program
  28. keeps the voltage steady
  29. False
  30. connect sensors and LEDs
  31. brings power and code
  32. No
  33. True
  34. laptop
  35. a spinning top
  36. a digital alarm clock
  37. a hand pump
  38. False
  39. a smart watch
  40. No

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