← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 655 · 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 digital thermometer usually has a microcontroller inside. (a) True (b) False
  2. 2.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a bicycle bell (d) a candle
  3. 3.True or false: a laptop runs one small program. (a) False (b) True
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the power LED (d) the pins
  5. 5.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  6. 6.True or false: a laptop has a built-in keyboard. (a) False (b) True
  7. 7.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  8. 8.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the pins (d) the reset button
  10. 10.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  12. 12.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
  14. 14.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a washing machine (d) a smart watch
  15. 15.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  16. 16.True or false: a laptop uses very little power. (a) False (b) True
  17. 17.Which of these usually has a microcontroller inside? (a) a TV remote (b) a hand pump (c) a plain wall switch (d) a candle
  18. 18.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the pins (c) the main chip (d) the power LED
  19. 19.Which job is done by the power LED? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  20. 20.True or false: a microcontroller runs one small program. (a) True (b) False
  21. 21.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  22. 22.Which of these has no microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a toy robot (d) a digital thermometer
  23. 23.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
  24. 24.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a candle (d) a toy robot
  25. 25.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  26. 26.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  27. 27.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  28. 28.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the pins (d) the voltage regulator
  29. 29.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a microcontroller runs many apps at once. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the USB port (d) the pins
  32. 32.True or false: a laptop has no screen of its own. (a) False (b) True
  33. 33.Which of these has no microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a digital alarm clock (d) a microwave oven
  34. 34.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  35. 35.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  37. 37.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  38. 38.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a microwave oven (d) a TV remote
  39. 39.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  40. 40.True or false: a microcontroller needs much more power. (a) False (b) True

Answer key

  1. True
  2. a digital alarm clock
  3. False
  4. the reset button
  5. Yes
  6. True
  7. connect sensors and LEDs
  8. True
  9. the power LED
  10. Yes
  11. microcontroller
  12. laptop
  13. USB or a 9 V battery
  14. a hand pump
  15. False
  16. False
  17. a TV remote
  18. the main chip
  19. shows the board is on
  20. True
  21. restarts the program
  22. a bicycle bell
  23. flash memory
  24. a toy robot
  25. brings power and code
  26. True
  27. True
  28. the voltage regulator
  29. Yes
  30. False
  31. the USB port
  32. False
  33. a plain wall switch
  34. False
  35. Yes
  36. No
  37. False
  38. a candle
  39. laptop
  40. False

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