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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 577 · 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.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  2. 2.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the voltage regulator (d) the main chip
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) typed on the chip (d) drawn with a pen
  4. 4.Which job is done by the reset button? (a) shows the board is on (b) connect sensors and LEDs (c) keeps the voltage steady (d) restarts the program
  5. 5.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a washing machine (d) a bicycle bell
  7. 7.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  8. 8.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) keeps the voltage steady
  9. 9.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  10. 10.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  12. 12.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) bare mains wires (d) a 230 V cable
  13. 13.True or false: a microcontroller uses very little power. (a) False (b) True
  14. 14.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  15. 15.Which of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a hand pump (d) a spinning top
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  17. 17.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
  18. 18.True or false: a microcontroller runs one small program. (a) True (b) False
  19. 19.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  20. 20.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  22. 22.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  23. 23.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  24. 24.True or false: a laptop runs many apps at once. (a) False (b) True
  25. 25.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  27. 27.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  29. 29.True or false: a laptop uses very little power. (a) False (b) True
  30. 30.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the voltage regulator (d) the main chip
  32. 32.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  33. 33.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the main chip (d) the voltage regulator
  34. 34.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the reset button (d) the main chip
  35. 35.Which job is done by the main chip? (a) keeps the voltage steady (b) runs the program (c) restarts the program (d) brings power and code
  36. 36.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
  37. 37.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  38. 38.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a hand pump (d) a TV remote
  39. 39.True or false: a microcontroller needs much more power. (a) True (b) False
  40. 40.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. False
  2. the pins
  3. uploaded over USB
  4. restarts the program
  5. No
  6. a washing machine
  7. True
  8. brings power and code
  9. No
  10. False
  11. microcontroller
  12. USB or a 9 V battery
  13. True
  14. True
  15. a smart watch
  16. laptop
  17. a computer on one chip
  18. True
  19. True
  20. Yes
  21. microcontroller
  22. False
  23. True
  24. True
  25. Yes
  26. False
  27. No
  28. flash memory
  29. False
  30. False
  31. the USB port
  32. it starts again
  33. the main chip
  34. the reset button
  35. runs the program
  36. keeps the voltage steady
  37. laptop
  38. a TV remote
  39. False
  40. Yes

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