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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 320 · 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 laptop runs one small program. (a) False (b) True
  2. 2.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  4. 4.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  5. 5.True or false: a laptop has a built-in keyboard. (a) False (b) True
  6. 6.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the reset button (d) the power LED
  7. 7.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  8. 8.True or false: a laptop needs much more power. (a) True (b) False
  9. 9.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  10. 10.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a bicycle bell (d) a digital thermometer
  11. 11.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  13. 13.True or false: a laptop has no screen of its own. (a) True (b) False
  14. 14.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  15. 15.Which of these has no microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a toy robot (d) a smart watch
  16. 16.True or false: a microcontroller runs one small program. (a) False (b) True
  17. 17.Which job is done by the pins? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  18. 18.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  19. 19.True or false: a laptop uses very little power. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a washing machine (d) a plain wall switch
  22. 22.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  23. 23.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  24. 24.Which job is done by the voltage regulator? (a) brings power and code (b) runs the program (c) shows the board is on (d) keeps the voltage steady
  25. 25.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the reset button (d) the USB port
  27. 27.True or false: a microcontroller needs much more power. (a) True (b) False
  28. 28.🤖 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
  29. 29.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the voltage regulator (d) the main chip
  31. 31.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  32. 32.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a smart watch (d) a bicycle bell
  33. 33.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the voltage regulator (d) the power LED
  34. 34.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  35. 35.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a candle (d) a TV remote
  36. 36.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  37. 37.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the pins (c) the voltage regulator (d) the USB port
  38. 38.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the USB port (d) the reset button
  39. 39.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a TV remote has no microcontroller inside. (a) True (b) False

Answer key

  1. False
  2. No
  3. laptop
  4. False
  5. True
  6. the power LED
  7. shows the board is on
  8. True
  9. runs the program
  10. a digital thermometer
  11. No
  12. flash memory
  13. False
  14. it starts again
  15. a bicycle bell
  16. True
  17. connect sensors and LEDs
  18. laptop
  19. False
  20. microcontroller
  21. a washing machine
  22. microcontroller
  23. Yes
  24. keeps the voltage steady
  25. Yes
  26. the reset button
  27. False
  28. a computer on one chip
  29. USB or a 9 V battery
  30. the USB port
  31. uploaded over USB
  32. a smart watch
  33. the pins
  34. laptop
  35. a TV remote
  36. True
  37. the voltage regulator
  38. the main chip
  39. Yes
  40. False

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