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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 694 · 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.🤖 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
  2. 2.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  3. 3.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the power LED (c) the USB port (d) the main chip
  4. 4.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) keeps the voltage steady
  5. 5.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a wind-up toy (d) a toy robot
  6. 6.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) restarts the program
  7. 7.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  8. 8.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  10. 10.True or false: a microcontroller uses very little power. (a) True (b) False
  11. 11.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  12. 12.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a laptop runs many apps at once. (a) True (b) False
  14. 14.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  15. 15.True or false: a laptop runs one small program. (a) False (b) True
  16. 16.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  17. 17.Which of these usually has a microcontroller inside? (a) a candle (b) a TV remote (c) a bicycle bell (d) a wind-up toy
  18. 18.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the pins (d) the main chip
  19. 19.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a digital alarm clock (d) a TV remote
  20. 20.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a plain wall switch (d) a digital alarm clock
  21. 21.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  22. 22.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  23. 23.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a washing machine (d) a candle
  24. 24.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the voltage regulator (d) the main chip
  25. 25.🤖 Does a TV remote 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 bicycle bell (c) a washing machine (d) a candle
  27. 27.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  28. 28.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  29. 29.True or false: a laptop has no screen of its own. (a) False (b) True
  30. 30.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  31. 31.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  32. 32.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a spinning top (d) a candle
  33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a microwave oven (d) a candle
  34. 34.True or false: a laptop needs much more power. (a) False (b) True
  35. 35.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  36. 36.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  37. 37.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  38. 38.🤖 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
  39. 39.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  40. 40.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. uploaded over USB
  2. a computer on one chip
  3. the USB port
  4. runs the program
  5. a toy robot
  6. shows the board is on
  7. No
  8. False
  9. microcontroller
  10. True
  11. True
  12. Yes
  13. True
  14. microcontroller
  15. False
  16. True
  17. a TV remote
  18. the reset button
  19. a spinning top
  20. a digital alarm clock
  21. True
  22. brings power and code
  23. a candle
  24. the power LED
  25. Yes
  26. a washing machine
  27. True
  28. No
  29. False
  30. False
  31. flash memory
  32. a smart watch
  33. a microwave oven
  34. True
  35. restarts the program
  36. microcontroller
  37. False
  38. it starts again
  39. False
  40. No

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