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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. uploaded over USB
  2. laptop
  3. the main chip
  4. shows the board is on
  5. Yes
  6. microcontroller
  7. a digital alarm clock
  8. runs the program
  9. laptop
  10. True
  11. No
  12. keeps the voltage steady
  13. brings power and code
  14. a digital thermometer
  15. True
  16. False
  17. False
  18. the pins
  19. the reset button
  20. False
  21. flash memory
  22. a plain wall switch
  23. False
  24. False
  25. Yes
  26. True
  27. a computer on one chip
  28. restarts the program
  29. Yes
  30. USB or a 9 V battery
  31. microcontroller
  32. True
  33. False
  34. the power LED
  35. No
  36. a microwave oven
  37. the USB port
  38. No
  39. a washing machine
  40. laptop

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