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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 301 · 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 part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the voltage regulator (d) the USB port
  2. 2.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a laptop uses very little power. (a) False (b) True
  4. 4.True or false: a microcontroller uses very little power. (a) True (b) False
  5. 5.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  6. 6.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the voltage regulator (c) the power LED (d) the pins
  7. 7.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery
  8. 8.True or false: a microcontroller runs one small program. (a) False (b) True
  9. 9.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a smart watch (d) a candle
  10. 10.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the USB port (d) the power LED
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  13. 13.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  14. 14.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  15. 15.True or false: a laptop has a built-in keyboard. (a) False (b) True
  16. 16.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  18. 18.True or false: a microcontroller has no screen of its own. (a) False (b) True
  19. 19.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a washing machine (d) a hand pump
  20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  22. 22.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a spinning top (d) a wind-up toy
  23. 23.True or false: a laptop runs one small program. (a) False (b) True
  24. 24.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  25. 25.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  29. 29.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a spinning top (d) a plain wall switch
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  31. 31.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) the board breaks (d) it deletes itself
  32. 32.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
  33. 33.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a wind-up toy (d) a digital thermometer
  34. 34.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  36. 36.Which of these has no microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a smart watch (d) a digital alarm clock
  37. 37.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  38. 38.Which job is done by the power LED? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  39. 39.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True

Answer key

  1. the reset button
  2. True
  3. False
  4. True
  5. False
  6. the power LED
  7. a computer on one chip
  8. True
  9. a smart watch
  10. the USB port
  11. the main chip
  12. microcontroller
  13. False
  14. No
  15. True
  16. Yes
  17. USB or a 9 V battery
  18. True
  19. a hand pump
  20. Yes
  21. False
  22. a digital thermometer
  23. False
  24. False
  25. No
  26. laptop
  27. Yes
  28. laptop
  29. a washing machine
  30. microcontroller
  31. it starts again
  32. uploaded over USB
  33. a wind-up toy
  34. No
  35. Yes
  36. a plain wall switch
  37. True
  38. shows the board is on
  39. False
  40. False

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