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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 97 · 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.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
  4. 4.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  5. 5.True or false: a laptop has a built-in keyboard. (a) False (b) True
  6. 6.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the main chip (d) the pins
  7. 7.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  8. 8.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  9. 9.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the main chip (c) the power LED (d) the USB port
  11. 11.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  12. 12.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a plain wall switch (d) a washing machine
  13. 13.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a toy robot (d) a plain wall switch
  14. 14.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  15. 15.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  17. 17.True or false: a laptop uses very little power. (a) True (b) False
  18. 18.True or false: a microcontroller runs one small program. (a) True (b) False
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the USB port (d) the pins
  21. 21.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a bicycle bell (d) a washing machine
  22. 22.True or false: a microcontroller runs many apps at once. (a) True (b) False
  23. 23.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  24. 24.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a wind-up toy (d) a digital thermometer
  25. 25.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  26. 26.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  27. 27.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  29. 29.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a bicycle bell (d) a spinning top
  30. 30.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  31. 31.True or false: a laptop runs one small program. (a) False (b) True
  32. 32.True or false: a laptop needs much more power. (a) False (b) True
  33. 33.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  34. 34.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  35. 35.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  36. 36.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the pins (c) the reset button (d) the voltage regulator
  37. 37.True or false: a microcontroller needs much more power. (a) False (b) True
  38. 38.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  39. 39.Which job is done by the pins? (a) restarts the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  40. 40.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself

Answer key

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

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