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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 615 · 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.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  2. 2.Which job is done by the main chip? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the USB port (d) the voltage regulator
  4. 4.Which of these has no microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a smart watch (d) a washing machine
  5. 5.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  6. 6.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  9. 9.Which job is done by the pins? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  10. 10.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a microwave oven (d) a candle
  11. 11.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the pins (d) the reset button
  13. 13.True or false: a laptop runs many apps at once. (a) True (b) False
  14. 14.True or false: a laptop runs one small program. (a) False (b) True
  15. 15.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) brings power and code
  16. 16.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a bicycle bell (d) a digital thermometer
  17. 17.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  18. 18.True or false: a laptop uses very little power. (a) False (b) True
  19. 19.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the pins (d) the reset button
  20. 20.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory
  21. 21.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  22. 22.Which of these has no microcontroller inside? (a) a candle (b) a microwave oven (c) a toy robot (d) a washing machine
  23. 23.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  24. 24.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  25. 25.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  26. 26.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a TV remote (d) a plain wall switch
  27. 27.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the pins (c) the USB port (d) the power LED
  29. 29.True or false: a laptop needs much more power. (a) True (b) False
  30. 30.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a toy robot (d) a bicycle bell
  32. 32.Which job is done by the power LED? (a) brings power and code (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  33. 33.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  34. 34.True or false: a laptop has no screen of its own. (a) True (b) False
  35. 35.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  36. 36.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  37. 37.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a toy robot (d) a hand pump
  38. 38.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  39. 39.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  40. 40.True or false: a microcontroller runs one small program. (a) False (b) True

Answer key

  1. True
  2. runs the program
  3. the power LED
  4. a bicycle bell
  5. laptop
  6. Yes
  7. No
  8. a computer on one chip
  9. connect sensors and LEDs
  10. a microwave oven
  11. USB or a 9 V battery
  12. the reset button
  13. True
  14. False
  15. brings power and code
  16. a digital thermometer
  17. laptop
  18. False
  19. the pins
  20. flash memory
  21. False
  22. a candle
  23. uploaded over USB
  24. True
  25. No
  26. a plain wall switch
  27. Yes
  28. the USB port
  29. True
  30. True
  31. a toy robot
  32. shows the board is on
  33. laptop
  34. False
  35. microcontroller
  36. No
  37. a hand pump
  38. False
  39. restarts the program
  40. True

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