← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 259 · 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 smart watch usually has a microcontroller inside. (a) False (b) True
  2. 2.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  3. 3.🤖 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
  4. 4.True or false: a laptop has a built-in keyboard. (a) False (b) True
  5. 5.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  6. 6.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  7. 7.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  8. 8.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the voltage regulator (d) the USB port
  10. 10.True or false: a microcontroller needs much more power. (a) False (b) True
  11. 11.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  13. 13.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) runs the program (d) brings power and code
  14. 14.True or false: a microcontroller runs one small program. (a) True (b) False
  15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the power LED (d) the pins
  16. 16.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) bare mains wires (d) a 230 V cable
  18. 18.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the pins (c) the USB port (d) the power LED
  19. 19.True or false: a microcontroller has no screen of its own. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  22. 22.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  24. 24.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  25. 25.Which of these has no microcontroller inside? (a) a toy robot (b) a candle (c) a microwave oven (d) a washing machine
  26. 26.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a washing machine (d) a bicycle bell
  27. 27.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  28. 28.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  29. 29.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a plain wall switch (d) a candle
  30. 30.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a laptop needs much more power. (a) True (b) False
  32. 32.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a candle (d) a hand pump
  33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  34. 34.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  35. 35.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  36. 36.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  37. 37.True or false: a laptop runs many apps at once. (a) True (b) False
  38. 38.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  39. 39.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port

Answer key

  1. True
  2. True
  3. it starts again
  4. True
  5. No
  6. brings power and code
  7. a computer on one chip
  8. keeps the voltage steady
  9. the pins
  10. False
  11. Yes
  12. False
  13. shows the board is on
  14. True
  15. the USB port
  16. Yes
  17. USB or a 9 V battery
  18. the power LED
  19. True
  20. microcontroller
  21. laptop
  22. Yes
  23. laptop
  24. True
  25. a candle
  26. a washing machine
  27. False
  28. False
  29. a TV remote
  30. Yes
  31. True
  32. a microwave oven
  33. microcontroller
  34. True
  35. False
  36. microcontroller
  37. True
  38. True
  39. No
  40. the main chip

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