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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 163 · 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 microcontroller has no screen of its own. (a) True (b) False
  2. 2.Which job is done by the main chip? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) runs the program
  3. 3.True or false: a microcontroller uses very little power. (a) True (b) False
  4. 4.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  5. 5.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  7. 7.True or false: a laptop has no screen of its own. (a) True (b) False
  8. 8.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
  9. 9.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the voltage regulator (d) the USB port
  10. 10.True or false: a microcontroller needs much more power. (a) False (b) True
  11. 11.True or false: a laptop has a built-in keyboard. (a) True (b) False
  12. 12.True or false: a microcontroller runs many apps at once. (a) False (b) True
  13. 13.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a hand pump (d) a microwave oven
  14. 14.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the pins (d) the USB port
  17. 17.True or false: a laptop needs much more power. (a) True (b) False
  18. 18.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  19. 19.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  20. 20.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  22. 22.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  23. 23.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  25. 25.Which job is done by the voltage regulator? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  26. 26.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  27. 27.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the voltage regulator (d) the pins
  28. 28.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  29. 29.Which of these usually has a microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a wind-up toy (d) a hand pump
  30. 30.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a candle (d) a spinning top
  31. 31.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the voltage regulator (d) the main chip
  32. 32.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  33. 33.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  34. 34.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  35. 35.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  39. 39.Which of these has no microcontroller inside? (a) a TV remote (b) a wind-up toy (c) a microwave oven (d) a washing machine
  40. 40.Which job is done by the pins? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on

Answer key

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

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