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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 166 · 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 brings power and code? (a) the pins (b) the USB port (c) the power LED (d) the reset button
  2. 2.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  3. 3.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  4. 4.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
  5. 5.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  6. 6.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  8. 8.True or false: a microcontroller uses very little power. (a) False (b) True
  9. 9.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  10. 10.True or false: a laptop runs one small program. (a) True (b) False
  11. 11.Which job is done by the pins? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  12. 12.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  13. 13.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  15. 15.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  16. 16.True or false: a laptop runs many apps at once. (a) False (b) True
  17. 17.True or false: a laptop has no screen of its own. (a) True (b) False
  18. 18.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a microwave oven (d) a candle
  19. 19.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the voltage regulator (d) the pins
  20. 20.Which job is done by the power LED? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  22. 22.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  23. 23.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital alarm clock (c) a toy robot (d) a plain wall switch
  27. 27.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a spinning top (d) a plain wall switch
  28. 28.True or false: a laptop needs much more power. (a) True (b) False
  29. 29.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  30. 30.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) uploaded over USB (d) drawn with a pen
  32. 32.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  33. 33.Which of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a plain wall switch (d) a bicycle bell
  34. 34.True or false: a microcontroller needs much more power. (a) False (b) True
  35. 35.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
  38. 38.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  39. 39.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the USB port (c) the main chip (d) the voltage regulator
  40. 40.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) it starts again (d) the board breaks

Answer key

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

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