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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 736 · 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.🤖 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
  2. 2.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  3. 3.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a hand pump (d) a wind-up toy
  4. 4.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a spinning top (d) a digital thermometer
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the USB port (d) the power LED
  6. 6.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  7. 7.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  8. 8.Which job is done by the USB port? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
  9. 9.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the voltage regulator (c) the pins (d) the main chip
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the power LED (d) the USB port
  12. 12.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  13. 13.True or false: a laptop has a built-in keyboard. (a) False (b) True
  14. 14.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  15. 15.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the power LED (c) the USB port (d) the pins
  17. 17.True or false: a laptop uses very little power. (a) True (b) False
  18. 18.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  19. 19.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the pins (d) the USB port
  20. 20.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a plain wall switch (d) a hand pump
  21. 21.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a bicycle bell (d) a washing machine
  22. 22.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a wind-up toy (d) a washing machine
  23. 23.True or false: a microcontroller has no screen of its own. (a) False (b) True
  24. 24.Which job is done by the reset button? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) runs the program
  25. 25.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  26. 26.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  27. 27.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a laptop runs many apps at once. (a) False (b) True
  29. 29.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  30. 30.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a candle (d) a TV remote
  31. 31.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a digital thermometer (d) a hand pump
  32. 32.Which job is done by the power LED? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the pins (d) the USB port
  35. 35.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  38. 38.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the power LED (d) the resistor
  39. 39.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  40. 40.🤖 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

Answer key

  1. a computer on one chip
  2. False
  3. a TV remote
  4. a spinning top
  5. the power LED
  6. runs the program
  7. False
  8. brings power and code
  9. microcontroller
  10. the reset button
  11. the pins
  12. laptop
  13. True
  14. Yes
  15. False
  16. the USB port
  17. False
  18. microcontroller
  19. the voltage regulator
  20. a microwave oven
  21. a bicycle bell
  22. a wind-up toy
  23. True
  24. restarts the program
  25. USB or a 9 V battery
  26. True
  27. Yes
  28. True
  29. microcontroller
  30. a candle
  31. a hand pump
  32. shows the board is on
  33. Yes
  34. the main chip
  35. True
  36. No
  37. False
  38. flash memory
  39. False
  40. uploaded over USB

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