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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 734 · 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.Which job is done by the power LED? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) brings power and code
  3. 3.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  4. 4.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  5. 5.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
  6. 6.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  7. 7.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  8. 8.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  10. 10.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the pins (c) the power LED (d) the USB port
  12. 12.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  13. 13.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  14. 14.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the power LED (d) the voltage regulator
  15. 15.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  16. 16.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  17. 17.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  18. 18.True or false: a microcontroller runs one small program. (a) True (b) False
  19. 19.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the pins (d) the reset button
  20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  21. 21.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a candle (d) a wind-up toy
  22. 22.True or false: a laptop needs much more power. (a) False (b) True
  23. 23.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  26. 26.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  27. 27.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  28. 28.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  29. 29.True or false: a laptop runs many apps at once. (a) True (b) False
  30. 30.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a spinning top (d) a wind-up toy
  31. 31.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) restarts the program
  32. 32.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the voltage regulator (c) the pins (d) the main chip
  33. 33.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a spinning top (d) a plain wall switch
  34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  35. 35.True or false: a microcontroller needs much more power. (a) False (b) True
  36. 36.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  37. 37.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  38. 38.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  39. 39.True or false: a candle has no microcontroller inside. (a) False (b) True
  40. 40.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip

Answer key

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

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