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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 429 · 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.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the main chip (d) the pins
  3. 3.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a smart watch (d) a bicycle bell
  4. 4.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a hand pump (d) a digital alarm clock
  5. 5.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a hand pump (d) a microwave oven
  6. 6.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a smart watch (d) a spinning top
  7. 7.Which job is done by the power LED? (a) keeps the voltage steady (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  8. 8.🤖 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
  9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) a 230 V cable (d) USB or a 9 V battery
  10. 10.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  11. 11.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  12. 12.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
  13. 13.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  16. 16.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  17. 17.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  18. 18.True or false: a laptop runs one small program. (a) False (b) True
  19. 19.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  20. 20.True or false: a microcontroller needs much more power. (a) True (b) False
  21. 21.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  23. 23.True or false: a microcontroller uses very little power. (a) False (b) True
  24. 24.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a digital thermometer (d) a candle
  25. 25.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  26. 26.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  27. 27.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  28. 28.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a plain wall switch (d) a microwave oven
  30. 30.True or false: a microcontroller runs one small program. (a) False (b) True
  31. 31.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  32. 32.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a washing machine (d) a plain wall switch
  33. 33.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a hand pump (d) a candle
  34. 34.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  35. 35.🤖 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
  36. 36.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  38. 38.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the power LED (c) the USB port (d) the reset button
  39. 39.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. microcontroller
  2. the voltage regulator
  3. a bicycle bell
  4. a digital alarm clock
  5. a hand pump
  6. a spinning top
  7. shows the board is on
  8. flash memory
  9. USB or a 9 V battery
  10. False
  11. True
  12. it starts again
  13. No
  14. a computer on one chip
  15. laptop
  16. connect sensors and LEDs
  17. False
  18. False
  19. False
  20. False
  21. True
  22. microcontroller
  23. True
  24. a digital thermometer
  25. keeps the voltage steady
  26. brings power and code
  27. True
  28. Yes
  29. a microwave oven
  30. True
  31. Yes
  32. a plain wall switch
  33. a TV remote
  34. False
  35. uploaded over USB
  36. Yes
  37. microcontroller
  38. the USB port
  39. No
  40. No

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