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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 60 · 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.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  2. 2.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  3. 3.True or false: a microcontroller runs one small program. (a) False (b) True
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the voltage regulator (d) the reset button
  5. 5.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
  8. 8.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a candle (d) a wind-up toy
  9. 9.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  10. 10.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
  12. 12.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 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
  15. 15.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the voltage regulator (c) the main chip (d) the power LED
  16. 16.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a digital thermometer (d) a smart watch
  17. 17.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  18. 18.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) runs the program (d) restarts the program
  19. 19.True or false: a laptop needs much more power. (a) True (b) False
  20. 20.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  21. 21.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a smart watch (d) a spinning top
  22. 22.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  23. 23.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a candle (d) a washing machine
  24. 24.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the power LED (d) the main chip
  25. 25.True or false: a microcontroller needs much more power. (a) True (b) False
  26. 26.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a microwave oven (d) a digital thermometer
  27. 27.True or false: a microcontroller has no screen of its own. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  29. 29.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  30. 30.Which job is done by the voltage regulator? (a) shows the board is on (b) connect sensors and LEDs (c) keeps the voltage steady (d) restarts the program
  31. 31.True or false: a microcontroller runs many apps at once. (a) True (b) False
  32. 32.True or false: a laptop runs one small program. (a) False (b) True
  33. 33.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  36. 36.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a spinning top (c) a wind-up toy (d) a plain wall switch
  37. 37.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the main chip (c) the USB port (d) the pins
  38. 38.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  40. 40.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. flash memory
  2. brings power and code
  3. True
  4. the reset button
  5. Yes
  6. True
  7. USB or a 9 V battery
  8. a digital thermometer
  9. False
  10. Yes
  11. it starts again
  12. Yes
  13. Yes
  14. a computer on one chip
  15. the main chip
  16. a bicycle bell
  17. laptop
  18. restarts the program
  19. True
  20. No
  21. a smart watch
  22. True
  23. a candle
  24. the USB port
  25. False
  26. a spinning top
  27. True
  28. microcontroller
  29. runs the program
  30. keeps the voltage steady
  31. False
  32. False
  33. False
  34. False
  35. No
  36. a microwave oven
  37. the pins
  38. No
  39. False
  40. No

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