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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 54 · 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 of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a bicycle bell (d) a washing machine
  2. 2.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the pins (d) the main chip
  6. 6.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a bicycle bell (d) a microwave oven
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the pins (c) the USB port (d) the main chip
  8. 8.True or false: a laptop has a built-in keyboard. (a) True (b) False
  9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
  10. 10.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
  11. 11.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  12. 12.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a TV remote (d) a spinning top
  13. 13.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  14. 14.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  15. 15.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the reset button (c) the voltage regulator (d) the USB port
  17. 17.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a toy robot (d) a wind-up toy
  18. 18.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  19. 19.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a candle (d) a digital thermometer
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  21. 21.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
  22. 22.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the USB port (d) the power LED
  23. 23.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  24. 24.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  25. 25.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  26. 26.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  27. 27.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
  28. 28.Which job is done by the pins? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) runs the program
  29. 29.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  30. 30.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  31. 31.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  32. 32.Which job is done by the reset button? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  33. 33.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  34. 34.True or false: a microcontroller has no screen of its own. (a) False (b) True
  35. 35.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  36. 36.True or false: a candle has no microcontroller inside. (a) False (b) True
  37. 37.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a digital alarm clock (d) a TV remote
  39. 39.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
  40. 40.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False

Answer key

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

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