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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 557 · 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 usually has a microcontroller inside? (a) a hand pump (b) a digital thermometer (c) a bicycle bell (d) a plain wall switch
  2. 2.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  3. 3.Which job is done by the voltage regulator? (a) restarts the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  4. 4.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a plain wall switch (d) a bicycle bell
  5. 5.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  6. 6.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a digital thermometer (d) a washing machine
  7. 7.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  8. 8.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) typed on the chip (d) drawn with a pen
  9. 9.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a candle (d) a microwave oven
  10. 10.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the voltage regulator (d) the main chip
  12. 12.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  13. 13.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) brings power and code
  14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  15. 15.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a hand pump (d) a digital thermometer
  16. 16.True or false: a laptop has no screen of its own. (a) False (b) True
  17. 17.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the main chip (d) the pins
  18. 18.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a wind-up toy (d) a toy robot
  19. 19.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  20. 20.True or false: a laptop uses very little power. (a) False (b) True
  21. 21.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  24. 24.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  25. 25.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the pins (d) the voltage regulator
  27. 27.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  28. 28.True or false: a microcontroller runs one small program. (a) False (b) True
  29. 29.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  30. 30.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a microcontroller runs many apps at once. (a) True (b) False
  32. 32.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
  33. 33.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  34. 34.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  35. 35.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the pins (c) the power LED (d) the reset button
  36. 36.True or false: a microcontroller has no screen of its own. (a) True (b) False
  37. 37.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  38. 38.True or false: a laptop needs much more power. (a) False (b) True
  39. 39.True or false: a laptop has a built-in keyboard. (a) True (b) False
  40. 40.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller

Answer key

  1. a digital thermometer
  2. flash memory
  3. keeps the voltage steady
  4. a washing machine
  5. True
  6. a spinning top
  7. False
  8. uploaded over USB
  9. a microwave oven
  10. Yes
  11. the pins
  12. False
  13. brings power and code
  14. Yes
  15. a hand pump
  16. False
  17. the voltage regulator
  18. a toy robot
  19. No
  20. False
  21. False
  22. Yes
  23. microcontroller
  24. True
  25. a computer on one chip
  26. the USB port
  27. laptop
  28. True
  29. True
  30. Yes
  31. False
  32. USB or a 9 V battery
  33. False
  34. True
  35. the reset button
  36. True
  37. laptop
  38. True
  39. True
  40. laptop

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