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Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. a computer on one chip
  2. Yes
  3. No
  4. True
  5. a bicycle bell
  6. No
  7. No
  8. True
  9. No
  10. Yes
  11. shows the board is on
  12. the reset button
  13. laptop
  14. False
  15. connect sensors and LEDs
  16. microcontroller
  17. laptop
  18. USB or a 9 V battery
  19. True
  20. a hand pump
  21. the main chip
  22. a smart watch
  23. Yes
  24. a spinning top
  25. it starts again
  26. a toy robot
  27. microcontroller
  28. the power LED
  29. laptop
  30. False
  31. Yes
  32. Yes
  33. True
  34. a microwave oven
  35. keeps the voltage steady
  36. microcontroller
  37. a candle
  38. a wind-up toy
  39. flash memory
  40. False

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