← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 731 · 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 of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a wind-up toy (d) a microwave oven
  2. 2.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a microwave oven (d) a bicycle bell
  3. 3.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  4. 4.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  5. 5.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  6. 6.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  7. 7.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the voltage regulator (d) the main chip
  9. 9.True or false: a laptop runs one small program. (a) False (b) True
  10. 10.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  11. 11.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the pins (d) the power LED
  14. 14.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a digital thermometer (d) a candle
  15. 15.True or false: a microcontroller runs one small program. (a) True (b) False
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the main chip (c) the power LED (d) the voltage regulator
  17. 17.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a hand pump (d) a TV remote
  18. 18.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  19. 19.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a TV remote (d) a plain wall switch
  20. 20.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  21. 21.True or false: a microcontroller needs much more power. (a) True (b) False
  22. 22.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) drawn with a pen (d) sent by sound
  23. 23.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  24. 24.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a digital alarm clock (d) a spinning top
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  26. 26.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  27. 27.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  28. 28.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) the board breaks (d) it stops forever
  29. 29.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the reset button (d) the power LED
  30. 30.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  31. 31.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  32. 32.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  33. 33.Which job is done by the voltage regulator? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  34. 34.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a digital alarm clock (d) a wind-up toy
  35. 35.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  38. 38.True or false: a candle has no microcontroller inside. (a) False (b) True
  39. 39.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the reset button (d) the main chip
  40. 40.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller

Answer key

  1. a wind-up toy
  2. a microwave oven
  3. Yes
  4. brings power and code
  5. True
  6. laptop
  7. a computer on one chip
  8. the USB port
  9. False
  10. False
  11. No
  12. flash memory
  13. the pins
  14. a digital thermometer
  15. True
  16. the voltage regulator
  17. a TV remote
  18. False
  19. a plain wall switch
  20. True
  21. False
  22. uploaded over USB
  23. True
  24. a spinning top
  25. microcontroller
  26. False
  27. True
  28. it starts again
  29. the power LED
  30. microcontroller
  31. True
  32. shows the board is on
  33. keeps the voltage steady
  34. a digital alarm clock
  35. True
  36. Yes
  37. laptop
  38. True
  39. the main chip
  40. microcontroller

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