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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 675 · 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.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  2. 2.Which job is done by the pins? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  3. 3.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  4. 4.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the voltage regulator (c) the main chip (d) the USB port
  6. 6.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a digital thermometer (d) a wind-up toy
  7. 7.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) a 230 V cable (d) USB or a 9 V battery
  10. 10.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  11. 11.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a wind-up toy (d) a smart watch
  12. 12.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  15. 15.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a spinning top (d) a hand pump
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  17. 17.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the pins (d) the reset button
  18. 18.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a hand pump (d) a smart watch
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  20. 20.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the pins (c) the power LED (d) the voltage regulator
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  22. 22.True or false: a laptop has no screen of its own. (a) False (b) True
  23. 23.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  24. 24.True or false: a laptop uses very little power. (a) False (b) True
  25. 25.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) shows the board is on (d) runs the program
  26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  28. 28.Which job is done by the reset button? (a) keeps the voltage steady (b) shows the board is on (c) restarts the program (d) runs the program
  29. 29.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the pins (c) the main chip (d) the USB port
  30. 30.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  31. 31.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  32. 32.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  33. 33.Which of these usually has a microcontroller inside? (a) a washing machine (b) a spinning top (c) a hand pump (d) a candle
  34. 34.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  35. 35.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the power LED (c) the reset button (d) the USB port
  38. 38.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  39. 39.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it deletes itself (d) it stops forever
  40. 40.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the USB port (d) the main chip

Answer key

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

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