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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 677 · 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 spinning top (b) a candle (c) a wind-up toy (d) a digital alarm clock
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  5. 5.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🤖 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
  7. 7.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the main chip (d) the pins
  8. 8.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  9. 9.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
  10. 10.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  11. 11.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the pins (c) the reset button (d) the power LED
  12. 12.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  13. 13.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  15. 15.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a bicycle bell (d) a spinning top
  16. 16.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) typed on the chip (d) sent by sound
  17. 17.Which job is done by the pins? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) connect sensors and LEDs
  18. 18.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  19. 19.True or false: a laptop has a built-in keyboard. (a) True (b) False
  20. 20.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  21. 21.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a laptop runs one small program. (a) False (b) True
  23. 23.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  24. 24.True or false: a microcontroller uses very little power. (a) False (b) True
  25. 25.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
  26. 26.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a digital alarm clock (d) a hand pump
  27. 27.True or false: a microcontroller has no screen of its own. (a) False (b) True
  28. 28.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  29. 29.Which job is done by the reset button? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  30. 30.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) runs the program
  31. 31.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  32. 32.True or false: a laptop needs much more power. (a) False (b) True
  33. 33.True or false: a microcontroller runs many apps at once. (a) False (b) True
  34. 34.Which of these has no microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a microwave oven (d) a TV remote
  35. 35.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the USB port (d) the reset button
  36. 36.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  37. 37.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  38. 38.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the power LED (d) the main chip
  39. 39.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  40. 40.True or false: a laptop has no screen of its own. (a) False (b) True

Answer key

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

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