← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 470 · 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.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  2. 2.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  3. 3.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a digital thermometer (d) a spinning top
  4. 4.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a candle (d) a digital thermometer
  5. 5.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  6. 6.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a spinning top (d) a bicycle bell
  7. 7.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  8. 8.True or false: a laptop has a built-in keyboard. (a) False (b) True
  9. 9.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  10. 10.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  11. 11.True or false: a microcontroller runs many apps at once. (a) False (b) True
  12. 12.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  13. 13.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a candle (d) a microwave oven
  14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  15. 15.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  16. 16.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) runs the program
  17. 17.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a plain wall switch (d) a bicycle bell
  18. 18.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
  20. 20.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  21. 21.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the pins (d) the voltage regulator
  24. 24.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  25. 25.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  26. 26.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a washing machine (d) a bicycle bell
  27. 27.True or false: a laptop runs many apps at once. (a) True (b) False
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  29. 29.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  30. 30.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  31. 31.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the pins (c) the voltage regulator (d) the USB port
  32. 32.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  33. 33.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a washing machine (d) a hand pump
  34. 34.Which job is done by the voltage regulator? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  35. 35.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  36. 36.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the voltage regulator (d) the reset button
  37. 37.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  38. 38.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  39. 39.Which job is done by the power LED? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  40. 40.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. True
  2. the pins
  3. a spinning top
  4. a digital thermometer
  5. laptop
  6. a TV remote
  7. it starts again
  8. True
  9. False
  10. laptop
  11. False
  12. the main chip
  13. a candle
  14. microcontroller
  15. False
  16. connect sensors and LEDs
  17. a microwave oven
  18. True
  19. a computer on one chip
  20. uploaded over USB
  21. Yes
  22. Yes
  23. the power LED
  24. False
  25. No
  26. a bicycle bell
  27. True
  28. the USB port
  29. False
  30. microcontroller
  31. the voltage regulator
  32. Yes
  33. a hand pump
  34. keeps the voltage steady
  35. brings power and code
  36. the reset button
  37. microcontroller
  38. No
  39. shows the board is on
  40. No

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