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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 613 · 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 plain wall switch usually has a microcontroller inside. (a) False (b) True
  2. 2.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  3. 3.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the reset button (c) the USB port (d) the main chip
  5. 5.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the reset button (d) the power LED
  7. 7.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  8. 8.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  10. 10.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  11. 11.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a spinning top (d) a digital alarm clock
  12. 12.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  13. 13.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a digital thermometer (d) a spinning top
  14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  15. 15.Which of these has no microcontroller inside? (a) a candle (b) a digital thermometer (c) a TV remote (d) a digital alarm clock
  16. 16.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
  17. 17.True or false: a laptop has a built-in keyboard. (a) False (b) True
  18. 18.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  20. 20.Which job is done by the reset button? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) brings power and code
  21. 21.True or false: a microcontroller runs many apps at once. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the voltage regulator (d) the pins
  23. 23.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  24. 24.True or false: a microcontroller uses very little power. (a) False (b) True
  25. 25.Which job is done by the USB port? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  26. 26.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  27. 27.True or false: a laptop runs many apps at once. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  29. 29.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  30. 30.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
  31. 31.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  32. 32.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the main chip (c) the voltage regulator (d) the reset button
  35. 35.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a spinning top (d) a digital alarm clock
  36. 36.Which job is done by the power LED? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  38. 38.Which job is done by the voltage regulator? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  39. 39.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  40. 40.True or false: a microcontroller needs much more power. (a) False (b) True

Answer key

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

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