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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 168 · 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 digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  2. 2.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  3. 3.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  4. 4.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  7. 7.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  8. 8.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  9. 9.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  12. 12.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  13. 13.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the USB port (d) the power LED
  15. 15.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a TV remote (d) a spinning top
  16. 16.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  17. 17.True or false: a laptop has no screen of its own. (a) False (b) True
  18. 18.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the pins (c) the USB port (d) the power LED
  20. 20.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  23. 23.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  24. 24.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a spinning top (d) a microwave oven
  25. 25.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  26. 26.True or false: a laptop runs one small program. (a) False (b) True
  27. 27.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  28. 28.True or false: a microcontroller uses very little power. (a) True (b) False
  29. 29.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  30. 30.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  31. 31.Which job is done by the reset button? (a) keeps the voltage steady (b) runs the program (c) shows the board is on (d) restarts the program
  32. 32.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  33. 33.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  34. 34.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  35. 35.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  36. 36.True or false: a laptop has a built-in keyboard. (a) False (b) True
  37. 37.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a toy robot (d) a TV remote
  38. 38.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a hand pump (d) a TV remote
  39. 39.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a smart watch (d) a wind-up toy
  40. 40.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. Yes
  2. Yes
  3. False
  4. False
  5. microcontroller
  6. brings power and code
  7. it starts again
  8. uploaded over USB
  9. No
  10. Yes
  11. flash memory
  12. False
  13. a computer on one chip
  14. the pins
  15. a spinning top
  16. True
  17. False
  18. Yes
  19. the power LED
  20. Yes
  21. No
  22. True
  23. False
  24. a microwave oven
  25. True
  26. False
  27. laptop
  28. True
  29. keeps the voltage steady
  30. No
  31. restarts the program
  32. False
  33. microcontroller
  34. laptop
  35. False
  36. True
  37. a plain wall switch
  38. a TV remote
  39. a smart watch
  40. Yes

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