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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 618 · 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.

NameDateTime takenScore ___ / 40
  1. 1.True or false: a laptop runs many apps at once. (a) True (b) False
  2. 2.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
  3. 3.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  4. 4.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  6. 6.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) runs the program
  7. 7.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a candle (d) a microwave oven
  8. 8.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port
  9. 9.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a candle (d) a digital alarm clock
  10. 10.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a spinning top (d) a toy robot
  11. 11.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the voltage regulator (c) the USB port (d) the pins
  13. 13.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a smart watch (d) a microwave oven
  14. 14.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  15. 15.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  16. 16.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  17. 17.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  18. 18.True or false: a microcontroller has no screen of its own. (a) True (b) False
  19. 19.True or false: a laptop needs much more power. (a) False (b) True
  20. 20.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  21. 21.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a spinning top (d) a TV remote
  23. 23.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  24. 24.🤖 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
  25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the pins (d) the main chip
  26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  27. 27.True or false: a microcontroller uses very little power. (a) True (b) False
  28. 28.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the USB cable (d) the power LED
  29. 29.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  31. 31.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  32. 32.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the voltage regulator (d) the main chip
  33. 33.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  34. 34.Which job is done by the reset button? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  35. 35.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  36. 36.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
  37. 37.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) USB or a 9 V battery (d) bare mains wires
  38. 38.True or false: a microcontroller runs one small program. (a) False (b) True
  39. 39.Which job is done by the main chip? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  40. 40.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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