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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 585 · 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 part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the voltage regulator (c) the reset button (d) the pins
  2. 2.True or false: a microcontroller has no screen of its own. (a) True (b) False
  3. 3.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) restarts the program
  4. 4.True or false: a microcontroller runs one small program. (a) False (b) True
  5. 5.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the pins (c) the main chip (d) the reset button
  7. 7.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
  8. 8.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
  9. 9.🤖 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
  10. 10.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  11. 11.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  13. 13.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  14. 14.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  15. 15.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  17. 17.True or false: a microcontroller runs many apps at once. (a) True (b) False
  18. 18.True or false: a laptop runs many apps at once. (a) False (b) True
  19. 19.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the reset button (c) the USB port (d) the power LED
  20. 20.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a bicycle bell (d) a toy robot
  21. 21.Which of these has no microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a digital thermometer (d) a smart watch
  22. 22.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a smart watch (d) a candle
  23. 23.Which job is done by the main chip? (a) runs the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  24. 24.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the main chip (c) the power LED (d) the voltage regulator
  26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  27. 27.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  28. 28.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
  29. 29.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  31. 31.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  32. 32.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a laptop has no screen of its own. (a) False (b) True
  34. 34.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  35. 35.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a wind-up toy (d) a TV remote
  36. 36.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  37. 37.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) runs the program (d) brings power and code
  39. 39.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  40. 40.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True

Answer key

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

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