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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 48 · 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 of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a smart watch (d) a digital alarm clock
  2. 2.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  4. 4.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  6. 6.Which job is done by the pins? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  8. 8.True or false: a laptop runs many apps at once. (a) True (b) False
  9. 9.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the power LED (d) the voltage regulator
  10. 10.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  11. 11.True or false: a microcontroller runs one small program. (a) True (b) False
  12. 12.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a wind-up toy (d) a digital alarm clock
  13. 13.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  14. 14.Which of these usually has a microcontroller inside? (a) a smart watch (b) a spinning top (c) a plain wall switch (d) a wind-up toy
  15. 15.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  16. 16.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) brings power and code
  17. 17.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  19. 19.True or false: a laptop needs much more power. (a) True (b) False
  20. 20.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the pins (c) the voltage regulator (d) the USB port
  21. 21.True or false: a microcontroller uses very little power. (a) False (b) True
  22. 22.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) runs the program
  23. 23.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a laptop has no screen of its own. (a) True (b) False
  25. 25.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  27. 27.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a laptop has a built-in keyboard. (a) False (b) True
  29. 29.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory
  30. 30.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  31. 31.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  32. 32.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  34. 34.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  35. 35.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a plain wall switch (c) a hand pump (d) a spinning top
  36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  37. 37.True or false: a laptop runs one small program. (a) False (b) True
  38. 38.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
  39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a toy robot (d) a hand pump
  40. 40.True or false: a microcontroller has no screen of its own. (a) True (b) False

Answer key

  1. a candle
  2. True
  3. False
  4. False
  5. uploaded over USB
  6. connect sensors and LEDs
  7. USB or a 9 V battery
  8. True
  9. the main chip
  10. False
  11. True
  12. a wind-up toy
  13. microcontroller
  14. a smart watch
  15. runs the program
  16. brings power and code
  17. Yes
  18. microcontroller
  19. True
  20. the USB port
  21. True
  22. keeps the voltage steady
  23. Yes
  24. False
  25. Yes
  26. the pins
  27. No
  28. True
  29. flash memory
  30. laptop
  31. laptop
  32. No
  33. microcontroller
  34. Yes
  35. a digital thermometer
  36. laptop
  37. False
  38. a computer on one chip
  39. a toy robot
  40. True

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