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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 317 · 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.

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

Answer key

  1. restarts the program
  2. a computer on one chip
  3. a hand pump
  4. False
  5. the USB port
  6. a plain wall switch
  7. laptop
  8. False
  9. False
  10. shows the board is on
  11. laptop
  12. False
  13. True
  14. True
  15. microcontroller
  16. a toy robot
  17. True
  18. a bicycle bell
  19. False
  20. the pins
  21. flash memory
  22. False
  23. microcontroller
  24. False
  25. False
  26. the reset button
  27. the power LED
  28. a TV remote
  29. keeps the voltage steady
  30. the main chip
  31. a digital thermometer
  32. Yes
  33. False
  34. a candle
  35. uploaded over USB
  36. True
  37. True
  38. Yes
  39. True
  40. USB or a 9 V battery

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