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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 609 · 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 job is done by the reset button? (a) runs the program (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  2. 2.Which job is done by the main chip? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) restarts the program
  3. 3.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  4. 4.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  5. 5.Which of these has no microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a smart watch (d) a TV remote
  6. 6.Which job is done by the pins? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  8. 8.True or false: a microcontroller runs many apps at once. (a) False (b) True
  9. 9.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  10. 10.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  11. 11.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
  14. 14.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the voltage regulator (d) the USB port
  15. 15.🤖 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
  16. 16.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  17. 17.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a spinning top (d) a wind-up toy
  18. 18.Which of these has no microcontroller inside? (a) a hand pump (b) a TV remote (c) a microwave oven (d) a smart watch
  19. 19.True or false: a laptop has no screen of its own. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  21. 21.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the power LED (c) the USB port (d) the voltage regulator
  22. 22.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which of these has no microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a digital alarm clock (d) a smart watch
  24. 24.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  25. 25.Which job is done by the power LED? (a) runs the program (b) restarts the program (c) shows the board is on (d) brings power and code
  26. 26.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  27. 27.True or false: a microcontroller has no screen of its own. (a) False (b) True
  28. 28.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  31. 31.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the pins (d) the USB port
  32. 32.True or false: a laptop has a built-in keyboard. (a) False (b) True
  33. 33.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
  35. 35.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  38. 38.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  39. 39.Which of these has no microcontroller inside? (a) a toy robot (b) a candle (c) a microwave oven (d) a digital thermometer
  40. 40.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again

Answer key

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

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