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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 174 · 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.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  2. 2.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) restarts the program (d) brings power and code
  3. 3.True or false: a microcontroller uses very little power. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  5. 5.🤖 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
  6. 6.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) restarts the program
  7. 7.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a washing machine (d) a plain wall switch
  8. 8.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the power LED (d) the main chip
  10. 10.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  11. 11.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a wind-up toy (d) a microwave oven
  12. 12.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  14. 14.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  15. 15.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  16. 16.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  17. 17.True or false: a candle has no microcontroller inside. (a) False (b) True
  18. 18.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  19. 19.Which job is done by the voltage regulator? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  20. 20.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a washing machine (d) a TV remote
  21. 21.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the pins (d) the power LED
  22. 22.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a plain wall switch (d) a TV remote
  23. 23.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  24. 24.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  25. 25.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  26. 26.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  27. 27.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  28. 28.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a digital alarm clock (d) a candle
  29. 29.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  30. 30.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the pins (d) the voltage regulator
  31. 31.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  32. 32.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  33. 33.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  34. 34.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  35. 35.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  36. 36.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  37. 37.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the power LED (c) the main chip (d) the reset button
  38. 38.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  39. 39.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) runs the program
  40. 40.Which of these usually has a microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a spinning top (d) a bicycle bell

Answer key

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

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