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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 231 · 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.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  2. 2.True or false: a microcontroller needs much more power. (a) True (b) False
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  4. 4.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) USB or a 9 V battery (d) bare mains wires
  5. 5.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  6. 6.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the main chip (d) the reset button
  7. 7.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  9. 9.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a toy robot (d) a spinning top
  10. 10.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  11. 11.Which job is done by the USB port? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  12. 12.Which of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a hand pump (d) a spinning top
  13. 13.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the reset button (c) the pins (d) the voltage regulator
  14. 14.True or false: a laptop has no screen of its own. (a) True (b) False
  15. 15.True or false: a microcontroller runs one small program. (a) True (b) False
  16. 16.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  18. 18.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the power LED (d) the resistor
  19. 19.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  20. 20.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  21. 21.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it deletes itself (d) it stops forever
  22. 22.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
  23. 23.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  24. 24.True or false: a microcontroller runs many apps at once. (a) False (b) True
  25. 25.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the voltage regulator (d) the USB port
  27. 27.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  28. 28.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a spinning top (d) a TV remote
  29. 29.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a wind-up toy (d) a plain wall switch
  30. 30.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  31. 31.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  32. 32.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  33. 33.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  35. 35.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  36. 36.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a spinning top (d) a wind-up toy
  37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  38. 38.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a microcontroller uses very little power. (a) False (b) True
  40. 40.True or false: a smart watch has no microcontroller inside. (a) True (b) False

Answer key

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

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