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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 757 · 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.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  2. 2.True or false: a laptop has no screen of its own. (a) False (b) True
  3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  4. 4.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a digital alarm clock (d) a plain wall switch
  5. 5.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  6. 6.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  7. 7.🤖 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
  8. 8.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  9. 9.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the voltage regulator (d) the reset button
  10. 10.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  11. 11.True or false: a laptop uses very little power. (a) False (b) True
  12. 12.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a wind-up toy (d) a candle
  13. 13.Which job is done by the reset button? (a) shows the board is on (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  14. 14.Which of these has no microcontroller inside? (a) a washing machine (b) a candle (c) a digital thermometer (d) a toy robot
  15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  16. 16.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the USB port (d) the pins
  18. 18.True or false: a laptop runs many apps at once. (a) True (b) False
  19. 19.Which job is done by the voltage regulator? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  20. 20.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the power LED (d) the pins
  22. 22.Which job is done by the pins? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  23. 23.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the voltage regulator (c) the USB port (d) the reset button
  25. 25.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  27. 27.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  29. 29.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  30. 30.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  31. 31.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a spinning top (d) a digital thermometer
  32. 32.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the main chip (d) the voltage regulator
  33. 33.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  34. 34.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  35. 35.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  36. 36.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a microwave oven (d) a hand pump
  37. 37.True or false: a microcontroller uses very little power. (a) False (b) True
  38. 38.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True

Answer key

  1. laptop
  2. False
  3. Yes
  4. a plain wall switch
  5. laptop
  6. shows the board is on
  7. a computer on one chip
  8. microcontroller
  9. the voltage regulator
  10. it starts again
  11. False
  12. a TV remote
  13. restarts the program
  14. a candle
  15. microcontroller
  16. USB or a 9 V battery
  17. the pins
  18. True
  19. keeps the voltage steady
  20. No
  21. the USB port
  22. connect sensors and LEDs
  23. Yes
  24. the reset button
  25. No
  26. False
  27. Yes
  28. True
  29. True
  30. laptop
  31. a digital thermometer
  32. the main chip
  33. True
  34. False
  35. flash memory
  36. a microwave oven
  37. True
  38. No
  39. No
  40. True

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