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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 225 · 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.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a digital thermometer (d) a washing machine
  4. 4.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 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
  6. 6.True or false: a microcontroller runs many apps at once. (a) True (b) False
  7. 7.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the pins (d) the reset button
  9. 9.True or false: a laptop runs many apps at once. (a) False (b) True
  10. 10.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a bicycle bell (d) a plain wall switch
  11. 11.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) typed on the chip (d) drawn with a pen
  12. 12.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  13. 13.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the main chip (d) the pins
  15. 15.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  17. 17.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  21. 21.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  22. 22.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  23. 23.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a microcontroller uses very little power. (a) False (b) True
  26. 26.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  27. 27.True or false: a laptop runs one small program. (a) True (b) False
  28. 28.🤖 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
  29. 29.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  31. 31.Which job is done by the main chip? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  32. 32.True or false: a microcontroller runs one small program. (a) False (b) True
  33. 33.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the voltage regulator (d) the main chip
  34. 34.True or false: a laptop needs much more power. (a) False (b) True
  35. 35.🤖 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
  36. 36.Which of these has no microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a toy robot (d) a digital thermometer
  37. 37.True or false: a microcontroller has no screen of its own. (a) True (b) False
  38. 38.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  39. 39.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  40. 40.Which of these usually has a microcontroller inside? (a) a spinning top (b) a smart watch (c) a plain wall switch (d) a bicycle bell

Answer key

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

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