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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 696 · 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.🤖 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
  2. 2.True or false: a laptop has a built-in keyboard. (a) False (b) True
  3. 3.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a toy robot (d) a spinning top
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  5. 5.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a hand pump (d) a TV remote
  6. 6.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  7. 7.True or false: a laptop runs many apps at once. (a) True (b) False
  8. 8.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the USB port (d) the reset button
  11. 11.True or false: a laptop uses very little power. (a) True (b) False
  12. 12.True or false: a microcontroller runs many apps at once. (a) True (b) False
  13. 13.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a hand pump (d) a spinning top
  14. 14.True or false: a microcontroller runs one small program. (a) True (b) False
  15. 15.Which job is done by the power LED? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  16. 16.True or false: a candle has no microcontroller inside. (a) False (b) True
  17. 17.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  18. 18.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  19. 19.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  20. 20.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  21. 21.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the USB port (d) the reset button
  24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  25. 25.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  26. 26.Which of these has no microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a digital thermometer (d) a toy robot
  27. 27.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  28. 28.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  29. 29.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a big desktop computer (d) a kind of bulb
  30. 30.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
  31. 31.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  32. 32.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  33. 33.True or false: a laptop has no screen of its own. (a) False (b) True
  34. 34.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  35. 35.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  36. 36.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  37. 37.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  38. 38.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  39. 39.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  40. 40.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port

Answer key

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

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