← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 107 · 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 main chip? (a) runs the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  2. 2.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  3. 3.True or false: a laptop uses very little power. (a) False (b) True
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  5. 5.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
  6. 6.True or false: a microcontroller runs many apps at once. (a) False (b) True
  7. 7.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  9. 9.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  10. 10.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  11. 11.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  13. 13.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  14. 14.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the reset button (c) the power LED (d) the pins
  15. 15.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  16. 16.True or false: a microcontroller uses very little power. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the pins (d) the reset button
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a wind-up toy (d) a spinning top
  19. 19.True or false: a microcontroller needs much more power. (a) True (b) False
  20. 20.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  21. 21.Which job is done by the power LED? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  22. 22.Which of these has no microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a smart watch (d) a digital alarm clock
  23. 23.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  24. 24.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  25. 25.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the USB port (d) the power LED
  27. 27.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a laptop runs many apps at once. (a) False (b) True
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  31. 31.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the USB port (d) the power LED
  32. 32.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a plain wall switch (d) a digital thermometer
  33. 33.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  35. 35.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  36. 36.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  37. 37.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a microwave oven (d) a candle
  38. 38.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False

Answer key

  1. runs the program
  2. False
  3. False
  4. microcontroller
  5. USB or a 9 V battery
  6. False
  7. Yes
  8. laptop
  9. False
  10. False
  11. No
  12. Yes
  13. True
  14. the power LED
  15. it starts again
  16. True
  17. the USB port
  18. a smart watch
  19. False
  20. True
  21. shows the board is on
  22. a plain wall switch
  23. restarts the program
  24. connect sensors and LEDs
  25. Yes
  26. the main chip
  27. No
  28. True
  29. Yes
  30. laptop
  31. the voltage regulator
  32. a digital thermometer
  33. True
  34. laptop
  35. brings power and code
  36. No
  37. a microwave oven
  38. microcontroller
  39. Yes
  40. False

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