← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 739 · 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.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  2. 2.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  3. 3.True or false: a laptop uses very little power. (a) False (b) True
  4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  5. 5.True or false: a microcontroller uses very little power. (a) False (b) True
  6. 6.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  7. 7.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the USB port (c) the voltage regulator (d) the main chip
  9. 9.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  10. 10.🤖 Microcontroller or laptop: which one uses very little power? (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 spinning top (b) a candle (c) a TV remote (d) a bicycle bell
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  14. 14.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  15. 15.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) shows the board is on (d) brings power and code
  16. 16.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a TV remote (d) a candle
  17. 17.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  18. 18.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  19. 19.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the power LED (d) the USB port
  21. 21.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  22. 22.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  25. 25.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) shows the board is on
  26. 26.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the reset button (d) the voltage regulator
  28. 28.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  29. 29.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  30. 30.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  31. 31.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a microwave oven (d) a candle
  32. 32.Which job is done by the USB port? (a) runs the program (b) shows the board is on (c) brings power and code (d) restarts the program
  33. 33.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  34. 34.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a digital alarm clock (d) a spinning top
  35. 35.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
  36. 36.True or false: a microcontroller has no screen of its own. (a) True (b) False
  37. 37.Which job is done by the reset button? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  38. 38.Which of these has no microcontroller inside? (a) a hand pump (b) a smart watch (c) a digital thermometer (d) a digital alarm clock
  39. 39.True or false: a laptop runs many apps at once. (a) False (b) True
  40. 40.True or false: a laptop has a built-in keyboard. (a) False (b) True

Answer key

  1. Yes
  2. False
  3. False
  4. the USB port
  5. True
  6. True
  7. False
  8. the voltage regulator
  9. laptop
  10. microcontroller
  11. No
  12. a TV remote
  13. uploaded over USB
  14. Yes
  15. runs the program
  16. a candle
  17. False
  18. laptop
  19. Yes
  20. the pins
  21. True
  22. True
  23. No
  24. microcontroller
  25. connect sensors and LEDs
  26. USB or a 9 V battery
  27. the power LED
  28. True
  29. True
  30. False
  31. a microwave oven
  32. brings power and code
  33. False
  34. a digital alarm clock
  35. a computer on one chip
  36. True
  37. restarts the program
  38. a hand pump
  39. True
  40. True

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