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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 72 · 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) True (b) False
  2. 2.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  3. 3.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  4. 4.Which of these has no microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a digital alarm clock (d) a smart watch
  5. 5.Which of these usually has a microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a plain wall switch (d) a spinning top
  6. 6.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) runs the program
  7. 7.True or false: a microcontroller has no screen of its own. (a) False (b) True
  8. 8.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  9. 9.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
  11. 11.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  12. 12.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a bicycle bell (d) a microwave oven
  13. 13.True or false: a laptop runs one small program. (a) False (b) True
  14. 14.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
  16. 16.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the reset button (d) the pins
  17. 17.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  19. 19.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  20. 20.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a digital alarm clock (d) a smart watch
  21. 21.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  22. 22.True or false: a microcontroller runs many apps at once. (a) True (b) False
  23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  24. 24.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the USB port (c) the reset button (d) the power LED
  25. 25.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a digital thermometer (d) a wind-up toy
  26. 26.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  27. 27.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  29. 29.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  30. 30.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  31. 31.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a wind-up toy (d) a TV remote
  32. 32.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  34. 34.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  35. 35.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a spinning top (d) a TV remote
  36. 36.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  38. 38.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  39. 39.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a plain wall switch (d) a TV remote
  40. 40.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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