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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 673 · 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.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  2. 2.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
  4. 4.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the voltage regulator (d) the power LED
  5. 5.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) runs the program (d) shows the board is on
  6. 6.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  8. 8.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a candle (d) a toy robot
  9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the reset button (d) the main chip
  10. 10.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a hand pump (d) a smart watch
  11. 11.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
  12. 12.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the USB port (d) the pins
  13. 13.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a washing machine (d) a spinning top
  14. 14.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  15. 15.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
  16. 16.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the power LED (d) the pins
  17. 17.True or false: a laptop uses very little power. (a) True (b) False
  18. 18.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  19. 19.True or false: a microcontroller runs many apps at once. (a) False (b) True
  20. 20.Which of these has no microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a smart watch (d) a TV remote
  21. 21.True or false: a laptop needs much more power. (a) False (b) True
  22. 22.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which job is done by the pins? (a) shows the board is on (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  24. 24.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) typed on the chip (d) drawn with a pen
  26. 26.True or false: a microcontroller has no screen of its own. (a) False (b) True
  27. 27.True or false: a microcontroller runs one small program. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  29. 29.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a spinning top (d) a plain wall switch
  30. 30.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  31. 31.True or false: a laptop has no screen of its own. (a) True (b) False
  32. 32.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  35. 35.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  36. 36.True or false: a candle has no microcontroller inside. (a) True (b) False
  37. 37.Which job is done by the power LED? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) runs the program
  38. 38.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  39. 39.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  40. 40.True or false: a TV remote has no microcontroller inside. (a) True (b) False

Answer key

  1. microcontroller
  2. Yes
  3. flash memory
  4. the voltage regulator
  5. keeps the voltage steady
  6. Yes
  7. No
  8. a candle
  9. the USB port
  10. a smart watch
  11. a computer on one chip
  12. the pins
  13. a washing machine
  14. True
  15. USB or a 9 V battery
  16. the main chip
  17. False
  18. False
  19. False
  20. a wind-up toy
  21. True
  22. Yes
  23. connect sensors and LEDs
  24. Yes
  25. uploaded over USB
  26. True
  27. True
  28. laptop
  29. a toy robot
  30. restarts the program
  31. False
  32. No
  33. False
  34. False
  35. False
  36. True
  37. shows the board is on
  38. True
  39. microcontroller
  40. False

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