← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 451 · 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.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  2. 2.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  5. 5.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a microwave oven (d) a candle
  6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  7. 7.Which of these usually has a microcontroller inside? (a) a toy robot (b) a candle (c) a spinning top (d) a plain wall switch
  8. 8.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  9. 9.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a candle (d) a plain wall switch
  10. 10.True or false: a microcontroller runs one small program. (a) False (b) True
  11. 11.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a TV remote (d) a wind-up toy
  12. 12.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  13. 13.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the USB port (c) the reset button (d) the pins
  14. 14.True or false: a laptop runs one small program. (a) False (b) True
  15. 15.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  16. 16.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  17. 17.True or false: a laptop needs much more power. (a) False (b) True
  18. 18.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  20. 20.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a hand pump (d) a microwave oven
  21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which of these has no microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a washing machine (d) a digital alarm clock
  23. 23.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a spinning top (d) a digital thermometer
  24. 24.Which job is done by the pins? (a) brings power and code (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  25. 25.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  26. 26.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  27. 27.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  28. 28.Which job is done by the reset button? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  29. 29.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the USB port (d) the reset button
  30. 30.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  31. 31.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  32. 32.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  33. 33.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  34. 34.True or false: a microcontroller needs much more power. (a) False (b) True
  35. 35.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  37. 37.Which of these usually has a microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a spinning top (d) a candle
  38. 38.Which of these has no microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a washing machine (d) a TV remote
  39. 39.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  40. 40.Which job is done by the power LED? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on

Answer key

  1. laptop
  2. brings power and code
  3. Yes
  4. uploaded over USB
  5. a candle
  6. laptop
  7. a toy robot
  8. False
  9. a washing machine
  10. True
  11. a TV remote
  12. False
  13. the reset button
  14. False
  15. False
  16. flash memory
  17. True
  18. No
  19. False
  20. a hand pump
  21. Yes
  22. a bicycle bell
  23. a digital thermometer
  24. connect sensors and LEDs
  25. True
  26. True
  27. microcontroller
  28. restarts the program
  29. the pins
  30. it starts again
  31. Yes
  32. microcontroller
  33. False
  34. False
  35. No
  36. microcontroller
  37. a smart watch
  38. a plain wall switch
  39. False
  40. shows the board is on

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