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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 62 · 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.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  2. 2.Which of these has no microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a digital thermometer (d) a smart watch
  3. 3.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  5. 5.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  6. 6.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the power LED (d) the pins
  7. 7.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  8. 8.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  9. 9.True or false: a microcontroller needs much more power. (a) True (b) False
  10. 10.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  11. 11.🤖 Does a toy robot 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) runs the program (c) keeps the voltage steady (d) brings power and code
  13. 13.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) runs the program (d) brings power and code
  14. 14.Which of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a spinning top (d) a plain wall switch
  15. 15.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a TV remote (d) a spinning top
  16. 16.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the pins (d) the main chip
  18. 18.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the main chip (c) the voltage regulator (d) the power LED
  19. 19.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the power LED (c) the USB port (d) the reset button
  20. 20.True or false: a laptop runs one small program. (a) False (b) True
  21. 21.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a plain wall switch (d) a wind-up toy
  24. 24.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  25. 25.True or false: a laptop has a built-in keyboard. (a) True (b) False
  26. 26.True or false: a laptop runs many apps at once. (a) False (b) True
  27. 27.True or false: a laptop has no screen of its own. (a) False (b) True
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the USB port (d) the pins
  29. 29.Which job is done by the reset button? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  30. 30.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  31. 31.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  32. 32.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a toy robot (d) a candle
  33. 33.🤖 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
  34. 34.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  36. 36.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  37. 37.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a toy robot (d) a bicycle bell
  38. 38.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  39. 39.Which of these usually has a microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a plain wall switch (d) a wind-up toy
  40. 40.True or false: a laptop uses very little power. (a) True (b) False

Answer key

  1. flash memory
  2. a wind-up toy
  3. it starts again
  4. microcontroller
  5. True
  6. the main chip
  7. False
  8. connect sensors and LEDs
  9. False
  10. True
  11. Yes
  12. brings power and code
  13. keeps the voltage steady
  14. a smart watch
  15. a spinning top
  16. laptop
  17. the pins
  18. the power LED
  19. the reset button
  20. False
  21. Yes
  22. runs the program
  23. a digital thermometer
  24. microcontroller
  25. True
  26. True
  27. False
  28. the USB port
  29. restarts the program
  30. False
  31. True
  32. a candle
  33. a computer on one chip
  34. uploaded over USB
  35. laptop
  36. True
  37. a bicycle bell
  38. False
  39. a washing machine
  40. False

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