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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 438 · 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 job is done by the pins? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  2. 2.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
  3. 3.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the pins (c) the voltage regulator (d) the power LED
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the voltage regulator (c) the USB port (d) the reset button
  6. 6.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  7. 7.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  9. 9.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a candle (d) a TV remote
  10. 10.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  12. 12.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  13. 13.Which of these has no microcontroller inside? (a) a smart watch (b) a spinning top (c) a digital thermometer (d) a microwave oven
  14. 14.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  15. 15.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a hand pump (d) a microwave oven
  16. 16.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) runs the program
  17. 17.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a wind-up toy (d) a bicycle bell
  18. 18.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  19. 19.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  20. 20.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the pins (d) the voltage regulator
  22. 22.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  23. 23.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a smart watch (d) a spinning top
  24. 24.True or false: a microcontroller uses very little power. (a) True (b) False
  25. 25.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  26. 26.True or false: a laptop needs much more power. (a) False (b) True
  27. 27.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the pins (d) the power LED
  28. 28.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  32. 32.True or false: a laptop has a built-in keyboard. (a) False (b) True
  33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the main chip (c) the reset button (d) the voltage regulator
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  35. 35.Which of these has no microcontroller inside? (a) a toy robot (b) a hand pump (c) a digital thermometer (d) a digital alarm clock
  36. 36.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a digital thermometer (d) a spinning top
  37. 37.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the USB cable (d) the resistor
  38. 38.True or false: a laptop runs one small program. (a) False (b) True
  39. 39.True or false: a microcontroller needs much more power. (a) True (b) False
  40. 40.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a digital alarm clock (d) a hand pump

Answer key

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

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