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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 357 · 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 plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the power LED (d) the USB cable
  3. 3.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  4. 4.Which of these has no microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a washing machine (d) a smart watch
  5. 5.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  6. 6.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the main chip (d) the power LED
  8. 8.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a smart watch (d) a plain wall switch
  9. 9.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
  10. 10.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  11. 11.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  12. 12.Which job is done by the USB port? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program
  13. 13.True or false: a microcontroller needs much more power. (a) True (b) False
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  15. 15.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the power LED (d) the voltage regulator
  17. 17.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a plain wall switch (d) a digital thermometer
  18. 18.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  20. 20.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a hand pump (d) a bicycle bell
  23. 23.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a microwave oven (d) a wind-up toy
  24. 24.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a toy robot (d) a spinning top
  25. 25.True or false: a laptop has no screen of its own. (a) True (b) False
  26. 26.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a microwave oven (d) a hand pump
  27. 27.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  28. 28.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  29. 29.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  30. 30.True or false: a microcontroller has no screen of its own. (a) False (b) True
  31. 31.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  32. 32.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the power LED (d) the reset button
  34. 34.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  35. 35.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  36. 36.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  37. 37.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  38. 38.Which of these usually has a microcontroller inside? (a) a candle (b) a toy robot (c) a spinning top (d) a plain wall switch
  39. 39.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  40. 40.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. No
  2. flash memory
  3. No
  4. a wind-up toy
  5. connect sensors and LEDs
  6. it starts again
  7. the USB port
  8. a smart watch
  9. uploaded over USB
  10. microcontroller
  11. False
  12. brings power and code
  13. False
  14. laptop
  15. Yes
  16. the voltage regulator
  17. a plain wall switch
  18. False
  19. Yes
  20. False
  21. Yes
  22. a washing machine
  23. a microwave oven
  24. a spinning top
  25. False
  26. a hand pump
  27. True
  28. Yes
  29. False
  30. True
  31. a computer on one chip
  32. keeps the voltage steady
  33. the reset button
  34. the power LED
  35. No
  36. False
  37. True
  38. a toy robot
  39. laptop
  40. No

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