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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 321 · 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 part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the USB port (d) the main chip
  2. 2.True or false: a microcontroller needs much more power. (a) False (b) True
  3. 3.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a TV remote (d) a wind-up toy
  4. 4.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  7. 7.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) uploaded over USB (d) drawn with a pen
  8. 8.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  9. 9.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  10. 10.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  11. 11.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  12. 12.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the reset button
  14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the reset button (c) the pins (d) the power LED
  16. 16.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  17. 17.True or false: a laptop runs many apps at once. (a) True (b) False
  18. 18.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a spinning top (d) a bicycle bell
  19. 19.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  20. 20.Which job is done by the USB port? (a) restarts the program (b) shows the board is on (c) brings power and code (d) runs the program
  21. 21.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a plain wall switch (d) a toy robot
  22. 22.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
  23. 23.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a digital thermometer (d) a TV remote
  24. 24.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a smart watch (d) a bicycle bell
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the voltage regulator (c) the USB port (d) the pins
  26. 26.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a washing machine (d) a hand pump
  27. 27.Which job is done by the voltage regulator? (a) restarts the program (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  28. 28.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  29. 29.True or false: a microcontroller uses very little power. (a) False (b) True
  30. 30.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  31. 31.Which job is done by the power LED? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  32. 32.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a hand pump (d) a digital thermometer
  33. 33.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  34. 34.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  35. 35.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  36. 36.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  37. 37.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which of these has no microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a microwave oven (d) a toy robot

Answer key

  1. the voltage regulator
  2. False
  3. a TV remote
  4. No
  5. True
  6. laptop
  7. uploaded over USB
  8. No
  9. True
  10. flash memory
  11. USB or a 9 V battery
  12. False
  13. the pins
  14. Yes
  15. the power LED
  16. microcontroller
  17. True
  18. a washing machine
  19. laptop
  20. brings power and code
  21. a toy robot
  22. it starts again
  23. a wind-up toy
  24. a smart watch
  25. the USB port
  26. a hand pump
  27. keeps the voltage steady
  28. True
  29. True
  30. True
  31. shows the board is on
  32. a digital thermometer
  33. False
  34. microcontroller
  35. False
  36. microcontroller
  37. False
  38. No
  39. Yes
  40. a plain wall switch

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