← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 569 · 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) False (b) True
  2. 2.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  3. 3.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  4. 4.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  5. 5.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  7. 7.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the power LED (d) the voltage regulator
  8. 8.Which job is done by the power LED? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  9. 9.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  10. 10.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a spinning top (d) a microwave oven
  13. 13.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the main chip (d) the voltage regulator
  14. 14.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  15. 15.Which of these has no microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a TV remote (d) a digital alarm clock
  16. 16.True or false: a microcontroller has no screen of its own. (a) True (b) False
  17. 17.True or false: a laptop uses very little power. (a) False (b) True
  18. 18.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  19. 19.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a plain wall switch (d) a washing machine
  20. 20.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  22. 22.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the reset button (c) the power LED (d) the main chip
  24. 24.True or false: a microcontroller runs one small program. (a) False (b) True
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the pins (d) the USB port
  26. 26.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it stops forever (d) it deletes itself
  27. 27.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a digital alarm clock (d) a candle
  28. 28.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  29. 29.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a smart watch (d) a bicycle bell
  30. 30.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a digital thermometer (d) a wind-up toy
  31. 31.True or false: a laptop runs one small program. (a) True (b) False
  32. 32.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  33. 33.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  34. 34.True or false: a laptop has a built-in keyboard. (a) True (b) False
  35. 35.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  36. 36.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  37. 37.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  39. 39.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  40. 40.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the reset button (d) the voltage regulator

Answer key

  1. False
  2. laptop
  3. True
  4. USB or a 9 V battery
  5. No
  6. runs the program
  7. the reset button
  8. shows the board is on
  9. brings power and code
  10. True
  11. No
  12. a spinning top
  13. the power LED
  14. True
  15. a bicycle bell
  16. True
  17. False
  18. Yes
  19. a washing machine
  20. No
  21. False
  22. Yes
  23. the main chip
  24. True
  25. the USB port
  26. it starts again
  27. a digital alarm clock
  28. False
  29. a smart watch
  30. a wind-up toy
  31. False
  32. laptop
  33. uploaded over USB
  34. True
  35. False
  36. microcontroller
  37. Yes
  38. False
  39. False
  40. the voltage regulator

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids