← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 205 · 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 plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  2. 2.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  3. 3.True or false: a laptop has no screen of its own. (a) True (b) False
  4. 4.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  5. 5.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  6. 6.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  7. 7.Which job is done by the voltage regulator? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  8. 8.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a washing machine (d) a plain wall switch
  9. 9.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  10. 10.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the voltage regulator (d) the USB port
  11. 11.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  12. 12.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  13. 13.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  14. 14.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  15. 15.Which job is done by the power LED? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  16. 16.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a candle (d) a bicycle bell
  17. 17.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a laptop runs many apps at once. (a) False (b) True
  19. 19.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  21. 21.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  22. 22.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  23. 23.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  25. 25.Which job is done by the pins? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  26. 26.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a plain wall switch (c) a spinning top (d) a candle
  27. 27.Which of these has no microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a microwave oven (d) a digital alarm clock
  28. 28.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the pins (c) the power LED (d) the reset button
  29. 29.🤖 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
  30. 30.True or false: a laptop has a built-in keyboard. (a) False (b) True
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  32. 32.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  33. 33.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a wind-up toy (d) a digital alarm clock
  34. 34.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the voltage regulator (c) the reset button (d) the USB port
  37. 37.True or false: a microcontroller has no screen of its own. (a) True (b) False
  38. 38.True or false: a microcontroller needs much more power. (a) True (b) False
  39. 39.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the USB port (d) the voltage regulator
  40. 40.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. No
  2. it starts again
  3. False
  4. True
  5. False
  6. brings power and code
  7. keeps the voltage steady
  8. a washing machine
  9. True
  10. the power LED
  11. microcontroller
  12. microcontroller
  13. False
  14. True
  15. shows the board is on
  16. a smart watch
  17. Yes
  18. True
  19. False
  20. laptop
  21. laptop
  22. False
  23. Yes
  24. No
  25. connect sensors and LEDs
  26. a digital thermometer
  27. a wind-up toy
  28. the reset button
  29. flash memory
  30. True
  31. laptop
  32. True
  33. a digital alarm clock
  34. No
  35. Yes
  36. the USB port
  37. True
  38. False
  39. the voltage regulator
  40. Yes

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