← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 104 · 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 job is done by the pins? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  2. 2.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  3. 3.True or false: a laptop runs one small program. (a) False (b) True
  4. 4.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  6. 6.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  7. 7.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a wind-up toy (d) a candle
  8. 8.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a washing machine (d) a hand pump
  9. 9.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  10. 10.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  11. 11.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  12. 12.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  13. 13.Which job is done by the power LED? (a) shows the board is on (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  14. 14.True or false: a microcontroller runs many apps at once. (a) True (b) False
  15. 15.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the voltage regulator (d) the reset button
  16. 16.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which of these has no microcontroller inside? (a) a TV remote (b) a wind-up toy (c) a microwave oven (d) a washing machine
  18. 18.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  19. 19.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a microwave oven
  20. 20.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) runs the program
  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 candle usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the main chip (c) the voltage regulator (d) the USB port
  26. 26.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  27. 27.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the voltage regulator (c) the power LED (d) the USB port
  29. 29.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port
  30. 30.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a smart watch (d) a plain wall switch
  31. 31.True or false: a microcontroller uses very little power. (a) True (b) False
  32. 32.🤖 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
  33. 33.Which of these has no microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a microwave oven (d) a TV remote
  34. 34.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) brings power and code (d) shows the board is on
  35. 35.True or false: a microcontroller needs much more power. (a) True (b) False
  36. 36.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  37. 37.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  40. 40.True or false: a hand pump has no microcontroller inside. (a) False (b) True

Answer key

  1. connect sensors and LEDs
  2. False
  3. False
  4. No
  5. microcontroller
  6. False
  7. a digital alarm clock
  8. a washing machine
  9. restarts the program
  10. Yes
  11. False
  12. laptop
  13. shows the board is on
  14. False
  15. the pins
  16. No
  17. a wind-up toy
  18. Yes
  19. a microwave oven
  20. brings power and code
  21. USB or a 9 V battery
  22. No
  23. Yes
  24. microcontroller
  25. the voltage regulator
  26. True
  27. flash memory
  28. the USB port
  29. the main chip
  30. a smart watch
  31. True
  32. it starts again
  33. a plain wall switch
  34. runs the program
  35. False
  36. False
  37. laptop
  38. No
  39. True
  40. True

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