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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 16 · 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 of these usually has a microcontroller inside? (a) a digital alarm clock (b) a wind-up toy (c) a spinning top (d) a candle
  2. 2.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  3. 3.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  4. 4.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  5. 5.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  8. 8.True or false: a microcontroller uses very little power. (a) True (b) False
  9. 9.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  12. 12.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the reset button (d) the main chip
  13. 13.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a plain wall switch (d) a smart watch
  14. 14.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  15. 15.Which job is done by the pins? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  16. 16.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) brings power and code
  17. 17.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  18. 18.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a microwave oven (d) a plain wall switch
  19. 19.Which of these usually has a microcontroller inside? (a) a spinning top (b) a toy robot (c) a hand pump (d) a plain wall switch
  20. 20.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  21. 21.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  22. 22.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a candle (d) a digital thermometer
  23. 23.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the reset button (d) the voltage regulator
  24. 24.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
  27. 27.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  29. 29.True or false: a microcontroller has no screen of its own. (a) True (b) False
  30. 30.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  31. 31.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a bicycle bell (d) a washing machine
  32. 32.True or false: a laptop uses very little power. (a) False (b) True
  33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the pins (d) the voltage regulator
  34. 34.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the resistor (d) the power LED
  35. 35.True or false: a microcontroller runs many apps at once. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a hand pump (d) a TV remote
  37. 37.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  38. 38.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  39. 39.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) brings power and code
  40. 40.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. a digital alarm clock
  2. microcontroller
  3. True
  4. keeps the voltage steady
  5. a computer on one chip
  6. microcontroller
  7. False
  8. True
  9. Yes
  10. brings power and code
  11. microcontroller
  12. the USB port
  13. a smart watch
  14. runs the program
  15. connect sensors and LEDs
  16. shows the board is on
  17. No
  18. a plain wall switch
  19. a toy robot
  20. USB or a 9 V battery
  21. laptop
  22. a candle
  23. the pins
  24. Yes
  25. Yes
  26. it starts again
  27. Yes
  28. No
  29. True
  30. laptop
  31. a bicycle bell
  32. False
  33. the reset button
  34. flash memory
  35. False
  36. a TV remote
  37. False
  38. False
  39. restarts the program
  40. Yes

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