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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 712 · 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 kind of bulb (d) a big desktop computer
  2. 2.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) runs the program
  3. 3.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  5. 5.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) keeps the voltage steady
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  7. 7.Which job is done by the voltage regulator? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  8. 8.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  9. 9.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  11. 11.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a spinning top (d) a toy robot
  12. 12.True or false: a microcontroller uses very little power. (a) True (b) False
  13. 13.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a toy robot
  14. 14.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a hand pump (d) a bicycle bell
  15. 15.True or false: a microcontroller needs much more power. (a) False (b) True
  16. 16.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a wind-up toy (d) a bicycle bell
  17. 17.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) a wall socket directly (d) bare mains wires
  18. 18.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  19. 19.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  20. 20.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the power LED (c) the reset button (d) the pins
  21. 21.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the pins (d) the power LED
  22. 22.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a digital alarm clock (d) a candle
  23. 23.Which of these usually has a microcontroller inside? (a) a smart watch (b) a spinning top (c) a bicycle bell (d) a hand pump
  24. 24.Which of these has no microcontroller inside? (a) a digital thermometer (b) a plain wall switch (c) a washing machine (d) a digital alarm clock
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  26. 26.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  27. 27.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  29. 29.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the pins (d) the reset button
  31. 31.True or false: a candle has no microcontroller inside. (a) True (b) False
  32. 32.Which of these has no microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a washing machine (d) a toy robot
  33. 33.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  35. 35.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  36. 36.Which job is done by the pins? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  37. 37.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  38. 38.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a microwave oven (d) a TV remote
  39. 39.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a spinning top (c) a candle (d) a wind-up toy
  40. 40.🤖 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

Answer key

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

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