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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 197 · 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.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  2. 2.True or false: a laptop needs much more power. (a) True (b) False
  3. 3.Which job is done by the voltage regulator? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  4. 4.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a smart watch (d) a candle
  5. 5.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  7. 7.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
  8. 8.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) a wall socket directly (d) bare mains wires
  10. 10.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  11. 11.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a candle (d) a microwave oven
  12. 12.Which job is done by the USB port? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  14. 14.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  16. 16.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it starts again (d) it stops forever
  18. 18.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the USB cable (d) the power LED
  19. 19.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  20. 20.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the voltage regulator (d) the USB port
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  22. 22.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the pins (c) the voltage regulator (d) the power LED
  23. 23.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  24. 24.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a microwave oven (d) a plain wall switch
  25. 25.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) restarts the program (d) runs the program
  26. 26.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the power LED (d) the voltage regulator
  27. 27.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  28. 28.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which of these has no microcontroller inside? (a) a spinning top (b) a toy robot (c) a microwave oven (d) a smart watch
  30. 30.True or false: a laptop has no screen of its own. (a) True (b) False
  31. 31.Which of these has no microcontroller inside? (a) a toy robot (b) a candle (c) a digital alarm clock (d) a digital thermometer
  32. 32.True or false: a laptop runs one small program. (a) True (b) False
  33. 33.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  36. 36.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
  37. 37.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  38. 38.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) shows the board is on (d) restarts the program
  39. 39.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  40. 40.True or false: a laptop uses very little power. (a) True (b) False

Answer key

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

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