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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 463 · 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 job is done by the reset button? (a) brings power and code (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  2. 2.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the USB port (d) the voltage regulator
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  4. 4.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  5. 5.True or false: a candle has no microcontroller inside. (a) False (b) True
  6. 6.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  7. 7.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  8. 8.Which job is done by the USB port? (a) runs the program (b) restarts the program (c) shows the board is on (d) brings power and code
  9. 9.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the USB port (c) the pins (d) the main chip
  11. 11.True or false: a microcontroller runs one small program. (a) False (b) True
  12. 12.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  13. 13.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a candle (d) a toy robot
  14. 14.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  15. 15.True or false: a microcontroller runs many apps at once. (a) False (b) True
  16. 16.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  17. 17.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a candle (d) a microwave oven
  18. 18.True or false: a microcontroller needs much more power. (a) True (b) False
  19. 19.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  22. 22.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the main chip (d) the pins
  23. 23.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the pins (d) the USB port
  24. 24.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a TV remote (d) a hand pump
  25. 25.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  26. 26.🤖 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
  27. 27.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  28. 28.True or false: a laptop has a built-in keyboard. (a) False (b) True
  29. 29.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the pins (c) the main chip (d) the USB port
  30. 30.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a hand pump (d) a TV remote
  31. 31.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  32. 32.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  33. 33.True or false: a laptop has no screen of its own. (a) False (b) True
  34. 34.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  35. 35.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) runs the program
  36. 36.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the voltage regulator (c) the reset button (d) the power LED
  37. 37.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  38. 38.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  39. 39.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a big desktop computer (d) a kind of bulb
  40. 40.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False

Answer key

  1. restarts the program
  2. the main chip
  3. uploaded over USB
  4. True
  5. True
  6. connect sensors and LEDs
  7. False
  8. brings power and code
  9. Yes
  10. the reset button
  11. True
  12. flash memory
  13. a toy robot
  14. shows the board is on
  15. False
  16. True
  17. a microwave oven
  18. False
  19. microcontroller
  20. Yes
  21. False
  22. the voltage regulator
  23. the pins
  24. a TV remote
  25. False
  26. it starts again
  27. False
  28. True
  29. the USB port
  30. a hand pump
  31. False
  32. laptop
  33. False
  34. True
  35. keeps the voltage steady
  36. the power LED
  37. False
  38. runs the program
  39. a computer on one chip
  40. False

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