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Electronics Worksheet: What Is a Microcontroller

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

Answer key

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

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