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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 70 · 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.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  2. 2.True or false: a microcontroller uses very little power. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the USB port (c) the power LED (d) the voltage regulator
  5. 5.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  6. 6.True or false: a microcontroller has no screen of its own. (a) False (b) True
  7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  8. 8.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  9. 9.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  11. 11.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  13. 13.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  14. 14.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  15. 15.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the reset button (d) the power LED
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a TV remote (d) a wind-up toy
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a spinning top (d) a digital thermometer
  19. 19.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) runs the program
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  21. 21.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  22. 22.True or false: a laptop runs one small program. (a) True (b) False
  23. 23.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  24. 24.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a bicycle bell (d) a candle
  25. 25.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  26. 26.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the voltage regulator (c) the pins (d) the power LED
  28. 28.True or false: a laptop has no screen of its own. (a) True (b) False
  29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  30. 30.Which job is done by the reset button? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  31. 31.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  32. 32.True or false: a laptop runs many apps at once. (a) True (b) False
  33. 33.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
  35. 35.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the pins (d) the power LED
  36. 36.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  37. 37.Which of these usually has a microcontroller inside? (a) a toy robot (b) a hand pump (c) a wind-up toy (d) a candle
  38. 38.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  39. 39.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  40. 40.True or false: a candle has no microcontroller inside. (a) False (b) True

Answer key

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

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