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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 212 · 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 of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a hand pump (d) a microwave oven
  2. 2.Which job is done by the voltage regulator? (a) brings power and code (b) connect sensors and LEDs (c) keeps the voltage steady (d) restarts the program
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  4. 4.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the reset button (d) the voltage regulator
  5. 5.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a laptop runs many apps at once. (a) False (b) True
  7. 7.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 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
  9. 9.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a hand pump (d) a smart watch
  10. 10.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  11. 11.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a microwave oven (d) a spinning top
  12. 12.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a wind-up toy (d) a plain wall switch
  13. 13.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  14. 14.True or false: a laptop runs one small program. (a) False (b) True
  15. 15.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a microcontroller needs much more power. (a) True (b) False
  17. 17.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  18. 18.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a plain wall switch (d) a TV remote
  19. 19.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  20. 20.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  22. 22.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the reset button (c) the USB port (d) the power LED
  23. 23.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  24. 24.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  25. 25.True or false: a microcontroller runs one small program. (a) True (b) False
  26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the voltage regulator (d) the pins
  27. 27.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a candle (d) a toy robot
  28. 28.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) restarts the program
  29. 29.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a spinning top (d) a digital alarm clock
  30. 30.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the pins (c) the voltage regulator (d) the power LED
  31. 31.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  33. 33.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) shows the board is on
  34. 34.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  35. 35.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  36. 36.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  37. 37.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  38. 38.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the USB port (d) the voltage regulator
  39. 39.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  40. 40.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a plain wall switch (d) a TV remote

Answer key

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

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