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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 296 · 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 job is done by the reset button? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  2. 2.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a microcontroller has no screen of its own. (a) True (b) False
  4. 4.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  6. 6.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  7. 7.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a microwave oven (d) a bicycle bell
  8. 8.True or false: a microcontroller needs much more power. (a) False (b) True
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  10. 10.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a digital alarm clock (d) a hand pump
  11. 11.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  13. 13.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) keeps the voltage steady
  14. 14.True or false: a microcontroller runs many apps at once. (a) True (b) False
  15. 15.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  16. 16.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a microwave oven (d) a spinning top
  17. 17.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  18. 18.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  19. 19.🤖 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
  20. 20.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the voltage regulator (c) the USB port (d) the pins
  21. 21.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the pins (c) the reset button (d) the power LED
  22. 22.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  23. 23.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  24. 24.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the pins (d) the reset button
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  26. 26.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  27. 27.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  28. 28.🤖 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
  29. 29.True or false: a microcontroller runs one small program. (a) False (b) True
  30. 30.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  31. 31.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  32. 32.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a hand pump (d) a candle
  33. 33.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  34. 34.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a bicycle bell (d) a toy robot
  35. 35.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a TV remote (d) a washing machine
  36. 36.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  38. 38.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the reset button (d) the power LED
  39. 39.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) keeps the voltage steady
  40. 40.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False

Answer key

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

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