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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 692 · 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.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) drawn with a pen (d) sent by sound
  2. 2.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  3. 3.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the USB port (d) the voltage regulator
  4. 4.🤖 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
  5. 5.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a hand pump (d) a candle
  6. 6.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
  7. 7.True or false: a laptop needs much more power. (a) True (b) False
  8. 8.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  9. 9.True or false: a microcontroller runs many apps at once. (a) False (b) True
  10. 10.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  11. 11.True or false: a laptop uses very little power. (a) False (b) True
  12. 12.True or false: a microcontroller runs one small program. (a) False (b) True
  13. 13.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  14. 14.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a smart watch (d) a hand pump
  15. 15.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the main chip (d) the USB port
  16. 16.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the pins (c) the power LED (d) the reset button
  17. 17.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a digital thermometer (d) a plain wall switch
  18. 18.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  20. 20.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  22. 22.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  23. 23.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a microwave oven (d) a candle
  24. 24.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  26. 26.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  30. 30.Which of these has no microcontroller inside? (a) a microwave oven (b) a candle (c) a smart watch (d) a digital thermometer
  31. 31.🤖 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
  32. 32.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  33. 33.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  34. 34.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  35. 35.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
  36. 36.True or false: a laptop has no screen of its own. (a) True (b) False
  37. 37.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the pins (c) the voltage regulator (d) the reset button
  38. 38.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) restarts the program (d) keeps the voltage steady

Answer key

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

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