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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 758 · 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 reset button? (a) runs the program (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  2. 2.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  4. 4.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the pins (c) the voltage regulator (d) the main chip
  6. 6.True or false: a microcontroller runs many apps at once. (a) False (b) True
  7. 7.True or false: a microcontroller needs much more power. (a) False (b) True
  8. 8.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a spinning top (d) a digital alarm clock
  9. 9.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a plain wall switch (d) a washing machine
  10. 10.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  12. 12.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a plain wall switch (d) a digital alarm clock
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) typed on the chip (d) sent by sound
  14. 14.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  15. 15.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the reset button (c) the pins (d) the main chip
  16. 16.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  18. 18.Which job is done by the power LED? (a) shows the board is on (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  19. 19.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a hand pump (d) a wind-up toy
  20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  21. 21.Which job is done by the main chip? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  22. 22.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a washing machine (d) a digital thermometer
  24. 24.Which job is done by the voltage regulator? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  25. 25.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a toy robot (d) a hand pump
  26. 26.True or false: a laptop needs much more power. (a) False (b) True
  27. 27.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  28. 28.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  29. 29.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  31. 31.True or false: a laptop has a built-in keyboard. (a) False (b) True
  32. 32.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  33. 33.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the USB port (d) the pins
  34. 34.True or false: a laptop uses very little power. (a) False (b) True
  35. 35.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
  36. 36.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
  38. 38.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a big desktop computer (d) a type of battery
  39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a spinning top (d) a plain wall switch
  40. 40.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True

Answer key

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

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