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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 638 · 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.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  2. 2.🤖 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
  3. 3.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the reset button (d) the power LED
  5. 5.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  7. 7.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  8. 8.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the reset button (c) the power LED (d) the pins
  10. 10.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  11. 11.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  12. 12.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the pins (d) the voltage regulator
  15. 15.Which of these has no microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a digital alarm clock (d) a digital thermometer
  16. 16.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the pins (d) the voltage regulator
  19. 19.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) brings power and code (d) runs the program
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  22. 22.Which of these usually has a microcontroller inside? (a) a candle (b) a digital alarm clock (c) a hand pump (d) a plain wall switch
  23. 23.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the pins (d) the main chip
  24. 24.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
  25. 25.True or false: a microcontroller uses very little power. (a) True (b) False
  26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a spinning top (d) a bicycle bell
  27. 27.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  28. 28.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a microwave oven
  29. 29.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a laptop needs much more power. (a) False (b) True
  32. 32.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a microwave oven (d) a spinning top
  33. 33.True or false: a microcontroller has no screen of its own. (a) True (b) False
  34. 34.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  35. 35.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  36. 36.Which job is done by the reset button? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  38. 38.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) runs the program (c) restarts the program (d) shows the board is on
  39. 39.Which job is done by the pins? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  40. 40.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a spinning top (d) a toy robot

Answer key

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

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