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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 528 · 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.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  2. 2.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the pins (d) the reset button
  4. 4.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a computer on one chip (d) a big desktop computer
  6. 6.True or false: a microcontroller needs much more power. (a) True (b) False
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a microwave oven (d) a plain wall switch
  8. 8.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the power LED (d) the main chip
  9. 9.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  11. 11.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  12. 12.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) runs the program
  13. 13.True or false: a laptop runs one small program. (a) False (b) True
  14. 14.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  15. 15.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a spinning top (d) a microwave oven
  17. 17.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a laptop needs much more power. (a) True (b) False
  19. 19.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  20. 20.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a TV remote (d) a plain wall switch
  21. 21.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a wind-up toy (d) a smart watch
  22. 22.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a toy robot (d) a candle
  23. 23.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port
  24. 24.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  25. 25.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the main chip (d) the power LED
  26. 26.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
  27. 27.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  28. 28.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  29. 29.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  31. 31.True or false: a microcontroller runs one small program. (a) False (b) True
  32. 32.Which of these has no microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a TV remote (d) a digital alarm clock
  33. 33.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  34. 34.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  35. 35.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  36. 36.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  38. 38.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  39. 39.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  40. 40.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller

Answer key

  1. flash memory
  2. No
  3. the pins
  4. Yes
  5. a computer on one chip
  6. False
  7. a microwave oven
  8. the main chip
  9. Yes
  10. USB or a 9 V battery
  11. laptop
  12. keeps the voltage steady
  13. False
  14. False
  15. No
  16. a spinning top
  17. No
  18. True
  19. False
  20. a plain wall switch
  21. a smart watch
  22. a toy robot
  23. the voltage regulator
  24. uploaded over USB
  25. the reset button
  26. runs the program
  27. False
  28. False
  29. Yes
  30. False
  31. True
  32. a bicycle bell
  33. Yes
  34. True
  35. microcontroller
  36. False
  37. microcontroller
  38. True
  39. True
  40. laptop

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