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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 527 · 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 toy robot usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which job is done by the USB port? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) connect sensors and LEDs
  3. 3.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a digital thermometer (d) a wind-up toy
  4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the main chip (d) the reset button
  6. 6.🤖 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
  7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) runs the program (c) shows the board is on (d) restarts the program
  10. 10.True or false: a microcontroller runs one small program. (a) True (b) False
  11. 11.True or false: a microcontroller has no screen of its own. (a) True (b) False
  12. 12.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a spinning top (d) a microwave oven
  13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  14. 14.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  15. 15.True or false: a microcontroller uses very little power. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the reset button
  17. 17.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a plain wall switch (d) a TV remote
  18. 18.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  20. 20.True or false: a laptop has no screen of its own. (a) True (b) False
  21. 21.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  22. 22.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  23. 23.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the reset button (c) the pins (d) the voltage regulator
  24. 24.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  26. 26.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a digital alarm clock (d) a hand pump
  27. 27.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  28. 28.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) runs the program
  29. 29.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which job is done by the pins? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  31. 31.True or false: a laptop runs many apps at once. (a) True (b) False
  32. 32.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  33. 33.Which of these has no microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a washing machine (d) a digital alarm clock
  34. 34.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a candle (d) a digital alarm clock
  35. 35.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a wind-up toy (d) a hand pump
  36. 36.True or false: a laptop has a built-in keyboard. (a) True (b) False
  37. 37.Which job is done by the power LED? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  38. 38.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the main chip (d) the voltage regulator
  39. 39.True or false: a laptop runs one small program. (a) False (b) True
  40. 40.True or false: a hand pump has no microcontroller inside. (a) False (b) True

Answer key

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

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