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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 281 · 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.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  2. 2.True or false: a laptop uses very little power. (a) True (b) False
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the main chip (d) the power LED
  4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the voltage regulator (d) the main chip
  5. 5.True or false: a microcontroller uses very little power. (a) False (b) True
  6. 6.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  7. 7.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a hand pump (d) a bicycle bell
  8. 8.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  9. 9.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  11. 11.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) brings power and code
  12. 12.True or false: a microcontroller has no screen of its own. (a) True (b) False
  13. 13.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  14. 14.Which job is done by the main chip? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  15. 15.🤖 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
  16. 16.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  17. 17.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  18. 18.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  19. 19.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the reset button (d) the USB port
  21. 21.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a wind-up toy (d) a washing machine
  22. 22.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a plain wall switch (d) a spinning top
  23. 23.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  26. 26.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  27. 27.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a candle (d) a digital alarm clock
  28. 28.True or false: a laptop needs much more power. (a) False (b) True
  29. 29.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  30. 30.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  32. 32.True or false: a microcontroller runs one small program. (a) True (b) False
  33. 33.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the voltage regulator (c) the reset button (d) the pins
  34. 34.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a plain wall switch (d) a smart watch
  35. 35.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the reset button (c) the main chip (d) the USB port
  36. 36.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the USB cable (d) the power LED
  37. 37.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  40. 40.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a hand pump (d) a spinning top

Answer key

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

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