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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 431 · 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 voltage regulator? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  2. 2.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the pins (d) the power LED
  3. 3.True or false: a laptop uses very little power. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the reset button (d) the USB port
  6. 6.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  7. 7.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  8. 8.True or false: a microcontroller has no screen of its own. (a) False (b) True
  9. 9.True or false: a laptop runs many apps at once. (a) False (b) True
  10. 10.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  11. 11.True or false: a microcontroller runs one small program. (a) False (b) True
  12. 12.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  13. 13.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  14. 14.Which of these has no microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a microwave oven (d) a washing machine
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  16. 16.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a spinning top (d) a bicycle bell
  17. 17.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the voltage regulator (c) the reset button (d) the USB port
  18. 18.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  19. 19.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the power LED (c) the USB port (d) the voltage regulator
  21. 21.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
  22. 22.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  23. 23.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the pins (d) the voltage regulator
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  25. 25.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a bicycle bell (d) a washing machine
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the voltage regulator (d) the reset button
  27. 27.True or false: a microcontroller needs much more power. (a) True (b) False
  28. 28.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  29. 29.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which of these has no microcontroller inside? (a) a hand pump (b) a digital thermometer (c) a smart watch (d) a microwave oven
  31. 31.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  32. 32.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  33. 33.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  34. 34.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a candle (c) a bicycle bell (d) a hand pump
  35. 35.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a wall socket directly (d) a 230 V cable
  37. 37.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  38. 38.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  39. 39.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  40. 40.True or false: a laptop has a built-in keyboard. (a) False (b) True

Answer key

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

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