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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 71 · 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.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  3. 3.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  4. 4.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a hand pump (c) a wind-up toy (d) a bicycle bell
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the USB port (d) the power LED
  6. 6.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  7. 7.Which job is done by the main chip? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  8. 8.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  9. 9.True or false: a laptop has no screen of its own. (a) True (b) False
  10. 10.Which job is done by the voltage regulator? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a hand pump (d) a toy robot
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  14. 14.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  15. 15.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  16. 16.🤖 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
  17. 17.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a spinning top (d) a TV remote
  18. 18.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  19. 19.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
  21. 21.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a microwave oven (d) a wind-up toy
  22. 22.Which of these usually has a microcontroller inside? (a) a toy robot (b) a hand pump (c) a candle (d) a bicycle bell
  23. 23.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the voltage regulator (c) the reset button (d) the pins
  26. 26.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a digital thermometer (d) a candle
  27. 27.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a digital thermometer (d) a plain wall switch
  28. 28.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a spinning top (d) a TV remote
  29. 29.True or false: a laptop has a built-in keyboard. (a) False (b) True
  30. 30.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  31. 31.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  32. 32.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  33. 33.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  34. 34.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a microcontroller runs one small program. (a) True (b) False
  36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  37. 37.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  38. 38.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  39. 39.True or false: a microcontroller uses very little power. (a) False (b) True
  40. 40.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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