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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 182 · 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 part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the reset button (d) the voltage regulator
  2. 2.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) it starts again (d) the board breaks
  3. 3.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the power LED (d) the main chip
  4. 4.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port
  6. 6.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  7. 7.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a candle (d) a plain wall switch
  8. 8.True or false: a laptop runs one small program. (a) True (b) False
  9. 9.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the USB port (c) the pins (d) the power LED
  11. 11.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  12. 12.True or false: a microcontroller runs one small program. (a) True (b) False
  13. 13.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) restarts the program
  14. 14.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  15. 15.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a digital alarm clock (d) a plain wall switch
  16. 16.Which of these usually has a microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a plain wall switch (d) a hand pump
  17. 17.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  18. 18.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  19. 19.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  21. 21.Which of these has no microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a smart watch (d) a microwave oven
  22. 22.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on
  23. 23.True or false: a microcontroller uses very little power. (a) True (b) False
  24. 24.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  26. 26.Which job is done by the voltage regulator? (a) shows the board is on (b) connect sensors and LEDs (c) keeps the voltage steady (d) runs the program
  27. 27.True or false: a laptop has a built-in keyboard. (a) False (b) True
  28. 28.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  29. 29.True or false: a laptop uses very little power. (a) True (b) False
  30. 30.True or false: a laptop needs much more power. (a) True (b) False
  31. 31.True or false: a candle has no microcontroller inside. (a) False (b) True
  32. 32.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  34. 34.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a bicycle bell (d) a washing machine
  35. 35.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a microwave oven (d) a bicycle bell
  36. 36.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
  37. 37.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  38. 38.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the power LED (d) the main chip
  40. 40.True or false: a microcontroller has no screen of its own. (a) False (b) True

Answer key

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

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