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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 161 · 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.True or false: a laptop has no screen of its own. (a) False (b) True
  2. 2.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  3. 3.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the main chip (d) the power LED
  4. 4.🤖 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
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the power LED (d) the reset button
  6. 6.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  7. 7.Which of these has no microcontroller inside? (a) a smart watch (b) a hand pump (c) a TV remote (d) a washing machine
  8. 8.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  9. 9.True or false: a microcontroller needs much more power. (a) True (b) False
  10. 10.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
  11. 11.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  12. 12.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  13. 13.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a smart watch (d) a candle
  14. 14.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  15. 15.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  16. 16.Which job is done by the main chip? (a) brings power and code (b) restarts the program (c) runs the program (d) keeps the voltage steady
  17. 17.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a candle (d) a washing machine
  18. 18.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the voltage regulator (d) the main chip
  19. 19.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  22. 22.True or false: a microcontroller runs one small program. (a) True (b) False
  23. 23.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the voltage regulator (d) the reset button
  24. 24.Which job is done by the voltage regulator? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) brings power and code
  25. 25.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  26. 26.True or false: a laptop uses very little power. (a) False (b) True
  27. 27.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  28. 28.True or false: a microcontroller uses very little power. (a) False (b) True
  29. 29.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  30. 30.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  31. 31.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a TV remote (d) a microwave oven
  32. 32.True or false: a laptop has a built-in keyboard. (a) False (b) True
  33. 33.True or false: a microcontroller runs many apps at once. (a) False (b) True
  34. 34.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  35. 35.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  36. 36.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  37. 37.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a plain wall switch (d) a spinning top
  38. 38.True or false: a TV remote usually has a 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.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) brings power and code

Answer key

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

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