← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 637 · 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 part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the voltage regulator (c) the USB port (d) the power LED
  4. 4.Which of these has no microcontroller inside? (a) a digital thermometer (b) a TV remote (c) a digital alarm clock (d) a bicycle bell
  5. 5.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a microwave oven
  6. 6.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  9. 9.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  10. 10.True or false: a laptop has no screen of its own. (a) True (b) False
  11. 11.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a bicycle bell (d) a hand pump
  12. 12.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  13. 13.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  14. 14.True or false: a laptop needs much more power. (a) False (b) True
  15. 15.Which of these has no microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a microwave oven (d) a washing machine
  16. 16.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  17. 17.Which job is done by the reset button? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
  18. 18.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  19. 19.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a digital thermometer (d) a hand pump
  20. 20.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) USB or a 9 V battery (d) bare mains wires
  21. 21.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  24. 24.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  25. 25.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  26. 26.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  27. 27.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  28. 28.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  29. 29.True or false: a laptop runs one small program. (a) True (b) False
  30. 30.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  31. 31.Which of these has no microcontroller inside? (a) a candle (b) a smart watch (c) a toy robot (d) a digital alarm clock
  32. 32.True or false: a microcontroller uses very little power. (a) False (b) True
  33. 33.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  34. 34.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
  35. 35.Which job is done by the pins? (a) brings power and code (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  36. 36.True or false: a microcontroller needs much more power. (a) True (b) False
  37. 37.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  38. 38.Which job is done by the voltage regulator? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  39. 39.True or false: a laptop has a built-in keyboard. (a) False (b) True
  40. 40.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the pins (d) the power LED

Answer key

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

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