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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 143 · 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 shows the board is on? (a) the voltage regulator (b) the reset button (c) the pins (d) the power LED
  2. 2.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
  3. 3.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a big desktop computer (d) a type of battery
  4. 4.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  6. 6.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  7. 7.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the voltage regulator (c) the USB port (d) the reset button
  8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) it starts again (d) the board breaks
  9. 9.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a spinning top (d) a digital alarm clock
  10. 10.True or false: a laptop runs one small program. (a) True (b) False
  11. 11.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a spinning top (d) a toy robot
  12. 12.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  13. 13.True or false: a microcontroller has no screen of its own. (a) False (b) True
  14. 14.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  15. 15.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  16. 16.True or false: a microcontroller needs much more power. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the main chip (d) the USB port
  18. 18.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a microcontroller uses very little power. (a) False (b) True
  20. 20.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  22. 22.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the reset button (d) the power LED
  23. 23.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  24. 24.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  25. 25.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a microcontroller runs many apps at once. (a) True (b) False
  27. 27.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a spinning top (d) a hand pump
  28. 28.True or false: a laptop has a built-in keyboard. (a) False (b) True
  29. 29.Which of these has no microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a washing machine (d) a microwave oven
  30. 30.Which of these has no microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a digital thermometer (d) a toy robot
  31. 31.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  32. 32.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  33. 33.Which job is done by the USB port? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) shows the board is on
  34. 34.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a candle (d) a plain wall switch
  36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  37. 37.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  38. 38.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the power LED (d) the pins
  39. 39.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a laptop needs much more power. (a) True (b) False

Answer key

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

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