← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 462 · 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.Which job is done by the pins? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  2. 2.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a big desktop computer (d) a type of battery
  3. 3.True or false: a microcontroller needs much more power. (a) False (b) True
  4. 4.True or false: a laptop has no screen of its own. (a) True (b) False
  5. 5.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a plain wall switch (d) a digital thermometer
  6. 6.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  7. 7.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) runs the program
  8. 8.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the power LED (c) the reset button (d) the voltage regulator
  10. 10.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  11. 11.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a spinning top (d) a smart watch
  12. 12.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a microwave oven (d) a hand pump
  13. 13.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  14. 14.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  15. 15.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a washing machine (d) a wind-up toy
  16. 16.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  17. 17.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  18. 18.Which job is done by the voltage regulator? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  19. 19.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a spinning top (d) a toy robot
  21. 21.True or false: a laptop runs many apps at once. (a) False (b) True
  22. 22.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the voltage regulator (d) the USB port
  23. 23.Which of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a spinning top (d) a bicycle bell
  24. 24.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  25. 25.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the reset button (d) the pins
  26. 26.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  27. 27.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  28. 28.Which of these has no microcontroller inside? (a) a toy robot (b) a candle (c) a washing machine (d) a microwave oven
  29. 29.True or false: a laptop has a built-in keyboard. (a) True (b) False
  30. 30.True or false: a microcontroller runs many apps at once. (a) True (b) False
  31. 31.Which of these has no microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a digital alarm clock (d) a microwave oven
  32. 32.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a microwave oven (d) a spinning top
  33. 33.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  36. 36.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
  38. 38.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a microcontroller has no screen of its own. (a) False (b) True

Answer key

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

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