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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 439 · 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.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  2. 2.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
  3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  6. 6.True or false: a microcontroller has no screen of its own. (a) True (b) False
  7. 7.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a microwave oven (d) a spinning top
  8. 8.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  9. 9.Which job is done by the reset button? (a) keeps the voltage steady (b) shows the board is on (c) restarts the program (d) runs the program
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the reset button (d) the power LED
  11. 11.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  12. 12.Which of these has no microcontroller inside? (a) a washing machine (b) a hand pump (c) a TV remote (d) a microwave oven
  13. 13.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  14. 14.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the voltage regulator (d) the USB port
  15. 15.True or false: a laptop has no screen of its own. (a) False (b) True
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which of these has no microcontroller inside? (a) a microwave oven (b) a spinning top (c) a toy robot (d) a TV remote
  18. 18.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  19. 19.Which of these has no microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a washing machine (d) a smart watch
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  21. 21.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a wind-up toy (d) a toy robot
  22. 22.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the reset button (c) the USB port (d) the main chip
  23. 23.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  24. 24.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a candle has no microcontroller inside. (a) False (b) True
  26. 26.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  27. 27.True or false: a microcontroller runs many apps at once. (a) False (b) True
  28. 28.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a candle (d) a digital alarm clock
  29. 29.True or false: a laptop has a built-in keyboard. (a) False (b) True
  30. 30.True or false: a microcontroller uses very little power. (a) True (b) False
  31. 31.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  32. 32.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) keeps the voltage steady
  33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a spinning top (d) a digital thermometer
  34. 34.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  36. 36.Which job is done by the main chip? (a) shows the board is on (b) brings power and code (c) runs the program (d) keeps the voltage steady
  37. 37.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the pins (c) the power LED (d) the voltage regulator
  38. 38.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  39. 39.🤖 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
  40. 40.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a wind-up toy (d) a digital thermometer

Answer key

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

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