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Electronics Worksheet: What Is a Microcontroller

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

Answer key

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

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