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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 593 · 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 runs many apps at once? (a) microcontroller (b) laptop
  2. 2.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a wind-up toy (d) a microwave oven
  3. 3.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  4. 4.True or false: a laptop uses very little power. (a) True (b) False
  5. 5.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  6. 6.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  9. 9.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a spinning top (d) a toy robot
  10. 10.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the voltage regulator (d) the pins
  11. 11.True or false: a microcontroller needs much more power. (a) False (b) True
  12. 12.Which job is done by the reset button? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  13. 13.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  14. 14.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a digital alarm clock (d) a microwave oven
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  16. 16.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  17. 17.Which job is done by the power LED? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  18. 18.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it deletes itself (d) it starts again
  19. 19.True or false: a microcontroller runs many apps at once. (a) True (b) False
  20. 20.🤖 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
  21. 21.True or false: a laptop has a built-in keyboard. (a) True (b) False
  22. 22.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  23. 23.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  24. 24.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  25. 25.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the pins (d) the USB port
  27. 27.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
  30. 30.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the power LED (d) the pins
  31. 31.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  32. 32.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
  33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the main chip (c) the voltage regulator (d) the reset button
  34. 34.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
  35. 35.Which of these has no microcontroller inside? (a) a smart watch (b) a plain wall switch (c) a digital alarm clock (d) a TV remote
  36. 36.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  37. 37.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  38. 38.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  39. 39.True or false: a laptop needs much more power. (a) False (b) True
  40. 40.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True

Answer key

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

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