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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 184 · 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.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  2. 2.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
  3. 3.True or false: a microcontroller has no screen of its own. (a) False (b) True
  4. 4.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a toy robot (d) a candle
  5. 5.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  6. 6.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a candle (d) a smart watch
  7. 7.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  8. 8.True or false: a microcontroller needs much more power. (a) False (b) True
  9. 9.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  10. 10.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself
  11. 11.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a TV remote (d) a plain wall switch
  12. 12.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
  13. 13.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  14. 14.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) restarts the program
  15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the pins (d) the power LED
  16. 16.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  17. 17.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  18. 18.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the pins (d) the main chip
  19. 19.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  20. 20.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) runs the program (d) keeps the voltage steady
  21. 21.Which job is done by the pins? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  22. 22.True or false: a laptop uses very little power. (a) True (b) False
  23. 23.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  24. 24.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a laptop runs many apps at once. (a) True (b) False
  26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which of these has no microcontroller inside? (a) a toy robot (b) a digital thermometer (c) a smart watch (d) a bicycle bell
  28. 28.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  29. 29.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a washing machine (d) a hand pump
  30. 30.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  31. 31.True or false: a candle has no microcontroller inside. (a) False (b) True
  32. 32.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  33. 33.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a washing machine (d) a bicycle bell
  34. 34.Which job is done by the power LED? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  35. 35.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  36. 36.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  38. 38.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a spinning top (d) a digital thermometer
  40. 40.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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