← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 379 · 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 of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a hand pump (d) a TV remote
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  4. 4.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  5. 5.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a smart watch (d) a spinning top
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a digital alarm clock (d) a digital thermometer
  8. 8.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  9. 9.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the power LED (d) the pins
  11. 11.Which of these has no microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a toy robot (d) a washing machine
  12. 12.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  13. 13.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  14. 14.True or false: a microcontroller runs many apps at once. (a) True (b) False
  15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the pins (d) the main chip
  16. 16.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  17. 17.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  18. 18.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  19. 19.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a washing machine (d) a wind-up toy
  21. 21.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  22. 22.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which job is done by the pins? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  24. 24.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a digital alarm clock (d) a wind-up toy
  25. 25.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  26. 26.Which job is done by the USB port? (a) restarts the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a plain wall switch (d) a TV remote
  31. 31.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  33. 33.True or false: a candle has no microcontroller inside. (a) True (b) False
  34. 34.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  35. 35.🤖 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
  36. 36.True or false: a microcontroller has no screen of its own. (a) False (b) True
  37. 37.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the pins (d) the main chip
  39. 39.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) runs the program (d) keeps the voltage steady
  40. 40.True or false: a washing machine has no microcontroller inside. (a) True (b) False

Answer key

  1. a TV remote
  2. No
  3. microcontroller
  4. laptop
  5. a smart watch
  6. microcontroller
  7. a spinning top
  8. False
  9. Yes
  10. the voltage regulator
  11. a wind-up toy
  12. a computer on one chip
  13. No
  14. False
  15. the reset button
  16. False
  17. False
  18. Yes
  19. keeps the voltage steady
  20. a washing machine
  21. USB or a 9 V battery
  22. Yes
  23. connect sensors and LEDs
  24. a digital alarm clock
  25. laptop
  26. brings power and code
  27. Yes
  28. False
  29. Yes
  30. a plain wall switch
  31. No
  32. Yes
  33. True
  34. True
  35. uploaded over USB
  36. True
  37. No
  38. the power LED
  39. restarts the program
  40. False

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