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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 601 · 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 runs the program? (a) the reset button (b) the USB port (c) the main chip (d) the pins
  2. 2.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  4. 4.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
  5. 5.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a wind-up toy (d) a microwave oven
  6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  8. 8.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  9. 9.True or false: a laptop runs many apps at once. (a) True (b) False
  10. 10.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  11. 11.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  12. 12.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) runs the program
  13. 13.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the USB port (d) the reset button
  14. 14.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
  15. 15.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a candle (d) a washing machine
  16. 16.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a wind-up toy (d) a candle
  17. 17.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  19. 19.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  20. 20.True or false: a laptop has a built-in keyboard. (a) True (b) False
  21. 21.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the main chip (d) the pins
  22. 22.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  23. 23.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a digital thermometer (d) a digital alarm clock
  24. 24.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a bicycle bell (d) a TV remote
  25. 25.True or false: a microcontroller runs one small program. (a) False (b) True
  26. 26.🤖 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
  27. 27.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  29. 29.True or false: a laptop runs one small program. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the voltage regulator (c) the USB port (d) the power LED
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  32. 32.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  33. 33.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) restarts the program
  34. 34.True or false: a microcontroller needs much more power. (a) False (b) True
  35. 35.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) runs the program
  36. 36.True or false: a laptop needs much more power. (a) True (b) False
  37. 37.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  38. 38.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the pins (d) the USB port
  39. 39.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. the main chip
  2. False
  3. laptop
  4. uploaded over USB
  5. a wind-up toy
  6. microcontroller
  7. USB or a 9 V battery
  8. True
  9. True
  10. Yes
  11. False
  12. runs the program
  13. the USB port
  14. keeps the voltage steady
  15. a candle
  16. a toy robot
  17. Yes
  18. flash memory
  19. False
  20. True
  21. the pins
  22. True
  23. a spinning top
  24. a TV remote
  25. True
  26. a computer on one chip
  27. Yes
  28. False
  29. False
  30. the power LED
  31. laptop
  32. microcontroller
  33. shows the board is on
  34. False
  35. connect sensors and LEDs
  36. True
  37. True
  38. the reset button
  39. Yes
  40. No

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