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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 430 · 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.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) the board breaks (d) it deletes itself
  2. 2.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a toy robot (d) a spinning top
  3. 3.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  4. 4.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a candle (d) a toy robot
  5. 5.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a bicycle bell (d) a spinning top
  6. 6.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  7. 7.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a washing machine (d) a hand pump
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  9. 9.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  10. 10.Which job is done by the voltage regulator? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  11. 11.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the pins (d) the USB port
  12. 12.Which of these has no microcontroller inside? (a) a spinning top (b) a washing machine (c) a microwave oven (d) a toy robot
  13. 13.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  14. 14.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 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
  16. 16.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  17. 17.Which job is done by the reset button? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) runs the program
  18. 18.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  19. 19.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the pins (d) the main chip
  20. 20.Which job is done by the power LED? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
  21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  22. 22.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  24. 24.Which of these has no microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a toy robot (d) a washing machine
  25. 25.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a bicycle bell (d) a spinning top
  26. 26.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  27. 27.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  28. 28.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) restarts the program
  30. 30.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the power LED (d) the main chip
  31. 31.True or false: a laptop has a built-in keyboard. (a) True (b) False
  32. 32.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  34. 34.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the voltage regulator (c) the main chip (d) the USB port
  35. 35.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  36. 36.True or false: a microcontroller uses very little power. (a) False (b) True
  37. 37.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a candle (d) a wind-up toy
  39. 39.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  40. 40.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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