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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 608 · 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.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the voltage regulator (d) the USB port
  2. 2.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  4. 4.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  5. 5.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  6. 6.True or false: a microcontroller uses very little power. (a) True (b) False
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  8. 8.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the pins (d) the power LED
  9. 9.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  10. 10.True or false: a microcontroller runs one small program. (a) True (b) False
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the power LED (d) the USB port
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the pins (d) the reset button
  13. 13.🤖 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
  14. 14.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the voltage regulator (c) the USB port (d) the main chip
  15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  16. 16.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port
  17. 17.Which job is done by the voltage regulator? (a) shows the board is on (b) connect sensors and LEDs (c) keeps the voltage steady (d) runs the program
  18. 18.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a digital thermometer (d) a candle
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  20. 20.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a plain wall switch (d) a bicycle bell
  21. 21.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  22. 22.Which job is done by the reset button? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) restarts the program
  23. 23.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a microcontroller needs much more power. (a) True (b) False
  25. 25.True or false: a laptop runs one small program. (a) True (b) False
  26. 26.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  27. 27.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  28. 28.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a hand pump (d) a spinning top
  29. 29.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) shows the board is on
  30. 30.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  31. 31.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  32. 32.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  33. 33.True or false: a candle has no microcontroller inside. (a) False (b) True
  34. 34.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a hand pump (d) a wind-up toy
  35. 35.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  36. 36.True or false: a laptop has no screen of its own. (a) True (b) False
  37. 37.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  38. 38.Which job is done by the main chip? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  39. 39.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  40. 40.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop

Answer key

  1. the voltage regulator
  2. True
  3. False
  4. True
  5. a computer on one chip
  6. True
  7. laptop
  8. the pins
  9. True
  10. True
  11. the main chip
  12. the reset button
  13. flash memory
  14. the USB port
  15. microcontroller
  16. the power LED
  17. keeps the voltage steady
  18. a candle
  19. laptop
  20. a washing machine
  21. connect sensors and LEDs
  22. restarts the program
  23. Yes
  24. False
  25. False
  26. Yes
  27. laptop
  28. a digital thermometer
  29. shows the board is on
  30. uploaded over USB
  31. False
  32. True
  33. True
  34. a TV remote
  35. False
  36. False
  37. brings power and code
  38. runs the program
  39. USB or a 9 V battery
  40. microcontroller

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