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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 649 · 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 reset button? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) shows the board is on
  2. 2.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  3. 3.🤖 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
  4. 4.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  5. 5.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the pins (c) the main chip (d) the USB port
  7. 7.True or false: a laptop runs many apps at once. (a) False (b) True
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the USB port (d) the pins
  9. 9.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 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
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  15. 15.Which of these has no microcontroller inside? (a) a smart watch (b) a spinning top (c) a toy robot (d) a digital thermometer
  16. 16.True or false: a laptop uses very little power. (a) False (b) True
  17. 17.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  18. 18.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  19. 19.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a plain wall switch (d) a washing machine
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  21. 21.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a candle (d) a wind-up toy
  22. 22.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  24. 24.True or false: a microcontroller uses very little power. (a) False (b) True
  25. 25.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  26. 26.Which job is done by the power LED? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  27. 27.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  28. 28.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a candle (d) a bicycle bell
  29. 29.Which of these has no microcontroller inside? (a) a hand pump (b) a digital thermometer (c) a microwave oven (d) a digital alarm clock
  30. 30.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  31. 31.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  32. 32.True or false: a microcontroller has no screen of its own. (a) False (b) True
  33. 33.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  35. 35.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  36. 36.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the voltage regulator (d) the main chip
  37. 37.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a smart watch (d) a wind-up toy
  38. 38.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) drawn with a pen (d) sent by sound
  39. 39.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a candle usually has a microcontroller inside. (a) True (b) False

Answer key

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

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