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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 407 · 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.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  2. 2.Which of these usually has a microcontroller inside? (a) a candle (b) a digital alarm clock (c) a plain wall switch (d) a spinning top
  3. 3.True or false: a laptop runs many apps at once. (a) False (b) True
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  5. 5.Which of these usually has a microcontroller inside? (a) a hand pump (b) a smart watch (c) a wind-up toy (d) a spinning top
  6. 6.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the voltage regulator (d) the USB port
  7. 7.Which job is done by the power LED? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) restarts the program
  8. 8.Which of these has no microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a TV remote (d) a microwave oven
  9. 9.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the main chip (d) the pins
  10. 10.🧭 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
  11. 11.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a plain wall switch (d) a microwave oven
  13. 13.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
  14. 14.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  15. 15.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  16. 16.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a digital alarm clock (d) a bicycle bell
  17. 17.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the main chip (d) the USB port
  18. 18.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  19. 19.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  20. 20.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a laptop needs much more power. (a) False (b) True
  22. 22.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
  23. 23.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  24. 24.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  25. 25.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  26. 26.True or false: a laptop runs one small program. (a) True (b) False
  27. 27.True or false: a microcontroller needs much more power. (a) True (b) False
  28. 28.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  31. 31.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a toy robot (d) a digital thermometer
  32. 32.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  33. 33.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  34. 34.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  35. 35.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  37. 37.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a candle (d) a plain wall switch
  38. 38.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  39. 39.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  40. 40.True or false: a spinning top has no microcontroller inside. (a) True (b) False

Answer key

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

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