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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 43 · 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) No (b) Yes
  2. 2.True or false: a microcontroller runs many apps at once. (a) False (b) True
  3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  4. 4.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a toy robot (d) a hand pump
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  7. 7.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  8. 8.Which job is done by the pins? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  9. 9.True or false: a microcontroller runs one small program. (a) True (b) False
  10. 10.Which job is done by the main chip? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  11. 11.True or false: a laptop runs one small program. (a) True (b) False
  12. 12.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a toy robot (d) a TV remote
  13. 13.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a microwave oven (d) a toy robot
  14. 14.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the pins (d) the USB port
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  16. 16.Which job is done by the USB port? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) connect sensors and LEDs
  17. 17.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  18. 18.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a plain wall switch (d) a digital alarm clock
  19. 19.True or false: a candle has no microcontroller inside. (a) False (b) True
  20. 20.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the pins (d) the power LED
  21. 21.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a toy robot (d) a bicycle bell
  23. 23.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the pins (d) the voltage regulator
  24. 24.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  25. 25.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  26. 26.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  27. 27.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  28. 28.True or false: a microcontroller has no screen of its own. (a) True (b) False
  29. 29.🤖 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
  30. 30.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  32. 32.🤖 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
  33. 33.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  34. 34.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  36. 36.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  37. 37.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the reset button (d) the USB port
  38. 38.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  39. 39.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  40. 40.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a washing machine (d) a hand pump

Answer key

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

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