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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 619 · 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) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  2. 2.Which job is done by the main chip? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  3. 3.Which of these has no microcontroller inside? (a) a toy robot (b) a hand pump (c) a digital thermometer (d) a microwave oven
  4. 4.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  6. 6.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  7. 7.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the voltage regulator (d) the USB port
  8. 8.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a candle (d) a plain wall switch
  9. 9.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the power LED (d) the pins
  11. 11.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  12. 12.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the reset button (d) the main chip
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the power LED (d) the reset button
  14. 14.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  15. 15.True or false: a microcontroller runs one small program. (a) True (b) False
  16. 16.True or false: a laptop uses very little power. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the voltage regulator (c) the power LED (d) the reset button
  18. 18.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  19. 19.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  20. 20.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  22. 22.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the power LED (d) the USB port
  23. 23.True or false: a candle has no microcontroller inside. (a) False (b) True
  24. 24.Which job is done by the voltage regulator? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  25. 25.True or false: a microcontroller runs many apps at once. (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 laptop runs many apps at once. (a) False (b) True
  28. 28.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  29. 29.True or false: a laptop needs much more power. (a) True (b) False
  30. 30.True or false: a laptop has a built-in keyboard. (a) True (b) False
  31. 31.Which job is done by the pins? (a) keeps the voltage steady (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  32. 32.True or false: a microcontroller needs much more power. (a) False (b) True
  33. 33.True or false: a microcontroller has no screen of its own. (a) True (b) False
  34. 34.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  37. 37.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a hand pump (d) a plain wall switch

Answer key

  1. restarts the program
  2. runs the program
  3. a hand pump
  4. Yes
  5. it starts again
  6. flash memory
  7. the main chip
  8. a digital thermometer
  9. brings power and code
  10. the voltage regulator
  11. False
  12. the USB port
  13. the pins
  14. a computer on one chip
  15. True
  16. False
  17. the power LED
  18. microcontroller
  19. False
  20. Yes
  21. microcontroller
  22. the reset button
  23. True
  24. keeps the voltage steady
  25. False
  26. False
  27. True
  28. True
  29. True
  30. True
  31. connect sensors and LEDs
  32. False
  33. True
  34. Yes
  35. False
  36. Yes
  37. False
  38. No
  39. Yes
  40. a microwave oven

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