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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 641 · 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 main chip? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) restarts the program
  2. 2.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  3. 3.True or false: a microcontroller runs one small program. (a) True (b) False
  4. 4.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  5. 5.True or false: a microcontroller uses very little power. (a) False (b) True
  6. 6.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  7. 7.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  8. 8.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the reset button (c) the main chip (d) the USB port
  9. 9.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 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
  11. 11.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
  12. 12.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a spinning top (d) a TV remote
  13. 13.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the pins (d) the power LED
  15. 15.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  16. 16.True or false: a laptop needs much more power. (a) False (b) True
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the voltage regulator (c) the reset button (d) the power LED
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  19. 19.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  20. 20.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a wind-up toy (d) a candle
  21. 21.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  22. 22.Which job is done by the power LED? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  23. 23.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  24. 24.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  25. 25.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  26. 26.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  27. 27.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a microwave oven (d) a candle
  28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  29. 29.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
  31. 31.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the USB port (d) the voltage regulator
  32. 32.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  33. 33.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the pins (c) the power LED (d) the USB port
  34. 34.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a plain wall switch (d) a hand pump
  35. 35.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a plain wall switch (d) a washing machine
  36. 36.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  37. 37.Which of these has no microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a toy robot (d) a digital alarm clock
  38. 38.True or false: a laptop runs one small program. (a) True (b) False
  39. 39.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True

Answer key

  1. runs the program
  2. microcontroller
  3. True
  4. Yes
  5. True
  6. False
  7. True
  8. the main chip
  9. Yes
  10. a computer on one chip
  11. flash memory
  12. a TV remote
  13. laptop
  14. the pins
  15. True
  16. True
  17. the power LED
  18. USB or a 9 V battery
  19. False
  20. a microwave oven
  21. False
  22. shows the board is on
  23. True
  24. microcontroller
  25. brings power and code
  26. No
  27. a candle
  28. microcontroller
  29. True
  30. the voltage regulator
  31. the reset button
  32. keeps the voltage steady
  33. the USB port
  34. a digital thermometer
  35. a washing machine
  36. it starts again
  37. a wind-up toy
  38. False
  39. No
  40. False

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