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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 441 · 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 of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a spinning top (d) a digital alarm clock
  2. 2.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  3. 3.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  4. 4.True or false: a microcontroller uses very little power. (a) False (b) True
  5. 5.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  6. 6.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  7. 7.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  8. 8.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a hand pump (d) a washing machine
  9. 9.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the voltage regulator (d) the pins
  11. 11.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  12. 12.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  14. 14.Which of these has no microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a washing machine (d) a digital thermometer
  15. 15.True or false: a microcontroller runs one small program. (a) True (b) False
  16. 16.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  17. 17.True or false: a laptop has a built-in keyboard. (a) False (b) True
  18. 18.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  19. 19.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  22. 22.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) shows the board is on
  23. 23.Which job is done by the pins? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  24. 24.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  25. 25.True or false: a laptop runs many apps at once. (a) True (b) False
  26. 26.Which job is done by the USB port? (a) restarts the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  27. 27.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a toy robot (d) a hand pump
  28. 28.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  29. 29.True or false: a laptop uses very little power. (a) True (b) False
  30. 30.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  32. 32.Which of these has no microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a digital alarm clock (d) a washing machine
  33. 33.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  35. 35.Which of these has no microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a microwave oven (d) a washing machine
  36. 36.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the USB port (d) the reset button
  37. 37.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  38. 38.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it stops forever (d) it deletes itself
  39. 39.True or false: a laptop runs one small program. (a) True (b) False
  40. 40.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the reset button (c) the main chip (d) the power LED

Answer key

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

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