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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 142 · 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 has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a digital thermometer (d) a wind-up toy
  2. 2.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the main chip (c) the voltage regulator (d) the power LED
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  6. 6.True or false: a candle has no microcontroller inside. (a) True (b) False
  7. 7.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  8. 8.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
  9. 9.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
  12. 12.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  13. 13.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) brings power and code
  14. 14.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a smart watch (d) a bicycle bell
  15. 15.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  16. 16.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  17. 17.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a microcontroller needs much more power. (a) False (b) True
  20. 20.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  21. 21.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a wind-up toy (d) a spinning top
  22. 22.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  23. 23.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a spinning top (d) a wind-up toy
  24. 24.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  25. 25.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a plain wall switch (d) a digital thermometer
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the reset button (d) the voltage regulator
  27. 27.True or false: a laptop needs much more power. (a) False (b) True
  28. 28.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the voltage regulator (c) the power LED (d) the reset button
  29. 29.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  30. 30.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  31. 31.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  32. 32.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  33. 33.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  34. 34.True or false: a laptop runs one small program. (a) False (b) True
  35. 35.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  38. 38.True or false: a microcontroller runs many apps at once. (a) True (b) False
  39. 39.True or false: a laptop has no screen of its own. (a) False (b) True
  40. 40.Which of these has no microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a smart watch (d) a washing machine

Answer key

  1. a wind-up toy
  2. No
  3. No
  4. the power LED
  5. uploaded over USB
  6. True
  7. True
  8. flash memory
  9. Yes
  10. restarts the program
  11. the pins
  12. the voltage regulator
  13. runs the program
  14. a smart watch
  15. laptop
  16. laptop
  17. Yes
  18. No
  19. False
  20. No
  21. a washing machine
  22. USB or a 9 V battery
  23. a microwave oven
  24. microcontroller
  25. a plain wall switch
  26. the main chip
  27. True
  28. the reset button
  29. True
  30. a computer on one chip
  31. laptop
  32. True
  33. microcontroller
  34. False
  35. False
  36. Yes
  37. False
  38. False
  39. False
  40. a spinning top

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