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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 455 · 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 shows the board is on? (a) the USB port (b) the power LED (c) the main chip (d) the pins
  2. 2.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  3. 3.True or false: a microcontroller has no screen of its own. (a) False (b) True
  4. 4.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
  5. 5.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  6. 6.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  7. 7.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  8. 8.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  9. 9.Which of these has no microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a washing machine (d) a toy robot
  10. 10.True or false: a candle has no microcontroller inside. (a) True (b) False
  11. 11.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  13. 13.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 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
  15. 15.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  16. 16.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a toy robot (d) a bicycle bell
  17. 17.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the voltage regulator (d) the power LED
  18. 18.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a laptop uses very little power. (a) False (b) True
  20. 20.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  21. 21.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the pins (d) the power LED
  22. 22.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
  23. 23.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  24. 24.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a plain wall switch (d) a TV remote
  25. 25.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  26. 26.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  27. 27.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  28. 28.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) shows the board is on
  29. 29.True or false: a laptop has no screen of its own. (a) False (b) True
  30. 30.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
  32. 32.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  33. 33.True or false: a laptop has a built-in keyboard. (a) True (b) False
  34. 34.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  35. 35.🧭 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
  36. 36.True or false: a laptop needs much more power. (a) True (b) False
  37. 37.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the main chip (d) the pins
  38. 38.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  39. 39.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a plain wall switch (d) a hand pump
  40. 40.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False

Answer key

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

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