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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 115 · 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 uses very little power? (a) laptop (b) microcontroller
  2. 2.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the pins (d) the reset button
  3. 3.True or false: a laptop runs many apps at once. (a) True (b) False
  4. 4.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
  5. 5.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  6. 6.Which job is done by the pins? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  7. 7.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  8. 8.True or false: a microcontroller runs one small program. (a) False (b) True
  9. 9.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  10. 10.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  11. 11.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  12. 12.True or false: a microcontroller has no screen of its own. (a) False (b) True
  13. 13.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the main chip (c) the pins (d) the reset button
  15. 15.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the pins (c) the voltage regulator (d) the USB port
  17. 17.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  18. 18.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  19. 19.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the main chip (d) the reset button
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  21. 21.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  22. 22.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a candle (c) a plain wall switch (d) a wind-up toy
  23. 23.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  24. 24.Which job is done by the main chip? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  25. 25.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the main chip (d) the voltage regulator
  26. 26.Which job is done by the voltage regulator? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  27. 27.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a microwave oven (d) a toy robot
  28. 28.True or false: a microcontroller uses very little power. (a) True (b) False
  29. 29.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
  30. 30.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a digital thermometer (d) a washing machine
  31. 31.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  32. 32.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  33. 33.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  35. 35.Which job is done by the power LED? (a) runs the program (b) restarts the program (c) brings power and code (d) shows the board is on
  36. 36.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  37. 37.True or false: a laptop has a built-in keyboard. (a) False (b) True
  38. 38.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  39. 39.True or false: a laptop uses very little power. (a) False (b) True
  40. 40.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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