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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 709 · 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 digital thermometer (b) a plain wall switch (c) a digital alarm clock (d) a washing machine
  2. 2.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the main chip (c) the power LED (d) the voltage regulator
  3. 3.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a plain wall switch (d) a digital alarm clock
  4. 4.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  5. 5.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  6. 6.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  7. 7.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  8. 8.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  9. 9.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  10. 10.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the USB port (d) the voltage regulator
  12. 12.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the reset button (d) the voltage regulator
  14. 14.Which of these has no microcontroller inside? (a) a washing machine (b) a hand pump (c) a digital alarm clock (d) a microwave oven
  15. 15.True or false: a laptop runs one small program. (a) False (b) True
  16. 16.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a wind-up toy (d) a microwave oven
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the USB port (d) the main chip
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  19. 19.Which job is done by the power LED? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) runs the program
  20. 20.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  21. 21.True or false: a laptop uses very little power. (a) False (b) True
  22. 22.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
  23. 23.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  24. 24.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  25. 25.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a candle (d) a smart watch
  26. 26.Which of these usually has a microcontroller inside? (a) a TV remote (b) a wind-up toy (c) a hand pump (d) a candle
  27. 27.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  28. 28.True or false: a microcontroller runs many apps at once. (a) False (b) True
  29. 29.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  30. 30.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  31. 31.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
  32. 32.True or false: a microcontroller runs one small program. (a) False (b) True
  33. 33.🤖 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
  34. 34.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  36. 36.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a toy robot (d) a wind-up toy
  39. 39.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  40. 40.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a hand pump (d) a smart watch

Answer key

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

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