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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 427 · 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 part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the USB port (d) the power LED
  2. 2.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  4. 4.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  6. 6.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a wind-up toy (d) a bicycle bell
  7. 7.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  8. 8.True or false: a laptop uses very little power. (a) False (b) True
  9. 9.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
  10. 10.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  11. 11.Which job is done by the reset button? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  12. 12.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) restarts the program (d) shows the board is on
  13. 13.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a microwave oven (d) a bicycle bell
  14. 14.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  15. 15.Which of these has no microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a smart watch (d) a digital thermometer
  16. 16.Which of these has no microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a microwave oven (d) a digital alarm clock
  17. 17.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the power LED (c) the USB port (d) the pins
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) USB or a 9 V battery (d) bare mains wires
  20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  21. 21.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  22. 22.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
  23. 23.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  24. 24.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  26. 26.🤖 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
  27. 27.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  28. 28.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a digital thermometer (d) a toy robot
  30. 30.True or false: a laptop has a built-in keyboard. (a) True (b) False
  31. 31.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  32. 32.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  34. 34.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  35. 35.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  36. 36.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  37. 37.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the reset button (d) the voltage regulator
  39. 39.True or false: a microcontroller uses very little power. (a) False (b) True
  40. 40.True or false: a laptop needs much more power. (a) True (b) False

Answer key

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

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