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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 600 · 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.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the USB port (d) the pins
  2. 2.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the power LED (d) the pins
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
  4. 4.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a candle (d) a microwave oven
  5. 5.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a toy robot (d) a plain wall switch
  6. 6.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  8. 8.True or false: a microcontroller needs much more power. (a) True (b) False
  9. 9.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it deletes itself (d) it starts again
  10. 10.Which job is done by the USB port? (a) keeps the voltage steady (b) shows the board is on (c) restarts the program (d) brings power and code
  11. 11.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a computer on one chip (d) a big desktop computer
  12. 12.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  13. 13.Which job is done by the pins? (a) restarts the program (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the reset button (c) the power LED (d) the USB port
  15. 15.True or false: a laptop runs one small program. (a) False (b) True
  16. 16.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
  18. 18.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the main chip (d) the pins
  20. 20.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  21. 21.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  23. 23.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a microcontroller has no screen of its own. (a) False (b) True
  26. 26.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  27. 27.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  28. 28.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  29. 29.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  30. 30.True or false: a laptop has no screen of its own. (a) True (b) False
  31. 31.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  32. 32.True or false: a microcontroller runs many apps at once. (a) False (b) True
  33. 33.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a hand pump (d) a spinning top
  34. 34.Which job is done by the power LED? (a) shows the board is on (b) brings power and code (c) runs the program (d) restarts the program
  35. 35.True or false: a microcontroller runs one small program. (a) False (b) True
  36. 36.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a digital alarm clock (d) a hand pump
  37. 37.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  38. 38.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  39. 39.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
  40. 40.Which of these usually has a microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a candle (d) a bicycle bell

Answer key

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

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