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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 89 · 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.🤖 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
  2. 2.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a TV remote (d) a spinning top
  3. 3.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  6. 6.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  9. 9.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a digital alarm clock (d) a candle
  10. 10.True or false: a microcontroller runs one small program. (a) True (b) False
  11. 11.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a laptop uses very little power. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the main chip (d) the USB port
  14. 14.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a bicycle bell (d) a digital thermometer
  15. 15.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  16. 16.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a spinning top (d) a microwave oven
  17. 17.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  18. 18.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a digital alarm clock (d) a wind-up toy
  19. 19.🤖 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
  20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  21. 21.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a spinning top (d) a washing machine
  22. 22.True or false: a laptop has a built-in keyboard. (a) True (b) False
  23. 23.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  24. 24.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the pins (c) the USB port (d) the power LED
  25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the USB port (c) the pins (d) the voltage regulator
  26. 26.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  27. 27.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  28. 28.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a candle (d) a microwave oven
  30. 30.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the reset button (d) the pins
  31. 31.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  32. 32.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  33. 33.True or false: a laptop has no screen of its own. (a) False (b) True
  34. 34.Which of these has no microcontroller inside? (a) a washing machine (b) a hand pump (c) a smart watch (d) a microwave oven
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a spinning top (d) a bicycle bell
  36. 36.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a plain wall switch (d) a digital alarm clock
  37. 37.True or false: a laptop runs one small program. (a) False (b) True
  38. 38.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  39. 39.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  40. 40.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True

Answer key

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

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