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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 492 · 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 no screen of its own. (a) True (b) False
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  3. 3.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  4. 4.Which of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a wind-up toy (d) a spinning top
  5. 5.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
  6. 6.True or false: a laptop has a built-in keyboard. (a) True (b) False
  7. 7.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a smart watch (d) a toy robot
  8. 8.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  10. 10.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  11. 11.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  12. 12.Which job is done by the reset button? (a) shows the board is on (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  13. 13.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) shows the board is on
  14. 14.Which job is done by the voltage regulator? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) restarts the program
  15. 15.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  16. 16.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  17. 17.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  18. 18.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a washing machine (d) a wind-up toy
  19. 19.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  22. 22.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the pins (d) the main chip
  23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  24. 24.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  25. 25.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
  26. 26.True or false: a microcontroller uses very little power. (a) True (b) False
  27. 27.True or false: a microcontroller runs many apps at once. (a) True (b) False
  28. 28.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a plain wall switch (d) a toy robot
  29. 29.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the pins (c) the reset button (d) the USB port
  30. 30.True or false: a microcontroller runs one small program. (a) False (b) True
  31. 31.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a spinning top (d) a microwave oven
  32. 32.Which of these has no microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a washing machine (d) a TV remote
  33. 33.Which job is done by the USB port? (a) restarts the program (b) runs the program (c) brings power and code (d) shows the board is on
  34. 34.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a candle (d) a microwave oven
  35. 35.True or false: a laptop runs one small program. (a) False (b) True
  36. 36.Which job is done by the main chip? (a) restarts the program (b) shows the board is on (c) runs the program (d) brings power and code
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  38. 38.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the voltage regulator (d) the USB port
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop

Answer key

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

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