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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 58 · 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.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  2. 2.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) restarts the program
  3. 3.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button
  4. 4.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a laptop has no screen of its own. (a) True (b) False
  6. 6.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  7. 7.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
  9. 9.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  10. 10.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  12. 12.Which job is done by the USB port? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) brings power and code
  13. 13.True or false: a laptop runs many apps at once. (a) False (b) True
  14. 14.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a digital thermometer (d) a hand pump
  15. 15.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a toy robot (d) a bicycle bell
  16. 16.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a wind-up toy (d) a candle
  17. 17.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the reset button (d) the voltage regulator
  18. 18.True or false: a laptop has a built-in keyboard. (a) True (b) False
  19. 19.Which job is done by the power LED? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
  20. 20.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a hand pump (d) a plain wall switch
  21. 21.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  22. 22.True or false: a microcontroller runs one small program. (a) False (b) True
  23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the USB port (d) the main chip
  24. 24.Which job is done by the pins? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  25. 25.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a candle (d) a hand pump
  26. 26.True or false: a microcontroller needs much more power. (a) False (b) True
  27. 27.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the main chip (c) the voltage regulator (d) the reset button
  28. 28.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  29. 29.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  30. 30.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  32. 32.True or false: a laptop needs much more power. (a) False (b) True
  33. 33.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  34. 34.🤖 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
  35. 35.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a wind-up toy (d) a microwave oven
  36. 36.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  37. 37.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a kind of bulb (d) a big desktop computer
  40. 40.True or false: a laptop runs one small program. (a) False (b) True

Answer key

  1. Yes
  2. runs the program
  3. the voltage regulator
  4. Yes
  5. False
  6. True
  7. False
  8. it starts again
  9. Yes
  10. False
  11. No
  12. brings power and code
  13. True
  14. a hand pump
  15. a toy robot
  16. a washing machine
  17. the main chip
  18. True
  19. shows the board is on
  20. a digital alarm clock
  21. laptop
  22. True
  23. the USB port
  24. connect sensors and LEDs
  25. a digital thermometer
  26. False
  27. the reset button
  28. flash memory
  29. microcontroller
  30. No
  31. laptop
  32. True
  33. False
  34. USB or a 9 V battery
  35. a wind-up toy
  36. False
  37. False
  38. Yes
  39. a computer on one chip
  40. False

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