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Electronics Worksheet: What Is a Microcontroller

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

Answer key

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

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