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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 327 · 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.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  2. 2.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
  3. 3.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  4. 4.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  5. 5.Which job is done by the reset button? (a) runs the program (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  6. 6.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the main chip (d) the reset button
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the main chip (c) the USB port (d) the power LED
  8. 8.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  9. 9.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the power LED (d) the voltage regulator
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the voltage regulator (c) the reset button (d) the pins
  11. 11.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  12. 12.Which job is done by the power LED? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) brings power and code
  13. 13.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the USB port (d) the reset button
  15. 15.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  16. 16.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  18. 18.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  19. 19.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a plain wall switch (d) a bicycle bell
  20. 20.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a smart watch (d) a TV remote
  21. 21.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which of these usually has a microcontroller inside? (a) a TV remote (b) a candle (c) a spinning top (d) a plain wall switch
  23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  24. 24.Which of these has no microcontroller inside? (a) a candle (b) a microwave oven (c) a digital alarm clock (d) a digital thermometer
  25. 25.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a plain wall switch (d) a candle
  26. 26.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a wind-up toy (d) a spinning top
  27. 27.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  28. 28.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  29. 29.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  30. 30.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a laptop runs one small program. (a) True (b) False
  32. 32.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  33. 33.True or false: a laptop runs many apps at once. (a) False (b) True
  34. 34.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  35. 35.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  36. 36.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a washing machine (d) a plain wall switch
  37. 37.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  38. 38.Which of these usually has a microcontroller inside? (a) a smart watch (b) a hand pump (c) a plain wall switch (d) a wind-up toy
  39. 39.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  40. 40.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the main chip (d) the USB port

Answer key

  1. laptop
  2. flash memory
  3. True
  4. connect sensors and LEDs
  5. restarts the program
  6. the main chip
  7. the USB port
  8. a computer on one chip
  9. the voltage regulator
  10. the reset button
  11. False
  12. shows the board is on
  13. True
  14. the pins
  15. False
  16. Yes
  17. uploaded over USB
  18. laptop
  19. a microwave oven
  20. a spinning top
  21. Yes
  22. a TV remote
  23. microcontroller
  24. a candle
  25. a toy robot
  26. a washing machine
  27. runs the program
  28. microcontroller
  29. laptop
  30. False
  31. False
  32. USB or a 9 V battery
  33. True
  34. False
  35. No
  36. a plain wall switch
  37. Yes
  38. a smart watch
  39. True
  40. the power LED

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