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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 728 · 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 runs one small program? (a) microcontroller (b) laptop
  2. 2.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) restarts the program
  3. 3.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
  4. 4.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the voltage regulator (d) the USB port
  8. 8.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a bicycle bell (d) a candle
  10. 10.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the USB port (d) the power LED
  11. 11.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a microcontroller runs many apps at once. (a) True (b) False
  13. 13.True or false: a laptop has a built-in keyboard. (a) False (b) True
  14. 14.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  17. 17.True or false: a microcontroller has no screen of its own. (a) False (b) True
  18. 18.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  19. 19.Which of these usually has a microcontroller inside? (a) a smart watch (b) a hand pump (c) a spinning top (d) a wind-up toy
  20. 20.True or false: a laptop needs much more power. (a) True (b) False
  21. 21.True or false: a microcontroller uses very little power. (a) True (b) False
  22. 22.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  23. 23.Which job is done by the main chip? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) runs the program
  24. 24.True or false: a laptop uses very little power. (a) True (b) False
  25. 25.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a smart watch (d) a microwave oven
  26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  27. 27.Which job is done by the reset button? (a) runs the program (b) brings power and code (c) shows the board is on (d) restarts the program
  28. 28.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  29. 29.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a spinning top (d) a washing machine
  30. 30.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  31. 31.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a candle (d) a microwave oven
  32. 32.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a smart watch (d) a hand pump
  33. 33.True or false: a microcontroller needs much more power. (a) False (b) True
  34. 34.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
  35. 35.True or false: a laptop has no screen of its own. (a) False (b) True
  36. 36.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  37. 37.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the reset button (c) the main chip (d) the pins
  40. 40.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False

Answer key

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

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