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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 92 · 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.

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

Answer key

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

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