← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 720 · 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.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  2. 2.Which of these has no microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a washing machine (d) a digital alarm clock
  3. 3.True or false: a laptop has no screen of its own. (a) False (b) True
  4. 4.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the voltage regulator (c) the USB port (d) the power LED
  6. 6.True or false: a microcontroller uses very little power. (a) True (b) False
  7. 7.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a hand pump (d) a bicycle bell
  8. 8.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the pins (d) the voltage regulator
  10. 10.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  11. 11.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  12. 12.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  14. 14.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a bicycle bell (d) a microwave oven
  15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  16. 16.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  19. 19.Which of these usually has a microcontroller inside? (a) a hand pump (b) a toy robot (c) a bicycle bell (d) a wind-up toy
  20. 20.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  21. 21.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a spinning top (d) a digital thermometer
  22. 22.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) restarts the program
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🧭 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
  26. 26.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a digital thermometer (d) a wind-up toy
  27. 27.True or false: a laptop runs one small program. (a) False (b) True
  28. 28.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  29. 29.True or false: a laptop needs much more power. (a) False (b) True
  30. 30.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  31. 31.True or false: a laptop uses very little power. (a) False (b) True
  32. 32.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the power LED (d) the main chip
  33. 33.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a microwave oven (d) a TV remote
  34. 34.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a candle (d) a hand pump
  36. 36.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  37. 37.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a toy robot (d) a spinning top
  38. 38.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  39. 39.Which of these usually has a microcontroller inside? (a) a smart watch (b) a hand pump (c) a candle (d) a spinning top
  40. 40.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. laptop
  2. a plain wall switch
  3. False
  4. brings power and code
  5. the reset button
  6. True
  7. a TV remote
  8. Yes
  9. the pins
  10. True
  11. laptop
  12. No
  13. No
  14. a microwave oven
  15. microcontroller
  16. microcontroller
  17. uploaded over USB
  18. the USB port
  19. a toy robot
  20. True
  21. a digital thermometer
  22. runs the program
  23. Yes
  24. Yes
  25. the voltage regulator
  26. a wind-up toy
  27. False
  28. connect sensors and LEDs
  29. True
  30. True
  31. False
  32. the main chip
  33. a candle
  34. flash memory
  35. a washing machine
  36. False
  37. a spinning top
  38. True
  39. a smart watch
  40. No

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