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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 597 · 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 has a built-in keyboard? (a) laptop (b) microcontroller
  2. 2.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which of these has no microcontroller inside? (a) a digital thermometer (b) a plain wall switch (c) a washing machine (d) a TV remote
  4. 4.Which job is done by the pins? (a) runs the program (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  5. 5.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  6. 6.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  7. 7.True or false: a laptop needs much more power. (a) False (b) True
  8. 8.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the main chip (d) the pins
  10. 10.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  11. 11.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  12. 12.True or false: a microcontroller runs one small program. (a) True (b) False
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  14. 14.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  15. 15.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the voltage regulator (d) the USB port
  16. 16.True or false: a microcontroller uses very little power. (a) False (b) True
  17. 17.True or false: a laptop runs many apps at once. (a) True (b) False
  18. 18.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
  21. 21.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a TV remote (d) a plain wall switch
  22. 22.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  23. 23.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a washing machine (d) a spinning top
  24. 24.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a laptop has a built-in keyboard. (a) False (b) True
  26. 26.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
  27. 27.Which of these has no microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a digital thermometer (d) a washing machine
  28. 28.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  29. 29.True or false: a laptop has no screen of its own. (a) True (b) False
  30. 30.Which job is done by the voltage regulator? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  31. 31.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  32. 32.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a bicycle bell (d) a candle
  33. 33.True or false: a microcontroller needs much more power. (a) True (b) False
  34. 34.Which of these usually has a microcontroller inside? (a) a spinning top (b) a toy robot (c) a candle (d) a wind-up toy
  35. 35.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the power LED
  36. 36.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  38. 38.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a candle has no microcontroller inside. (a) True (b) False

Answer key

  1. laptop
  2. Yes
  3. a plain wall switch
  4. connect sensors and LEDs
  5. microcontroller
  6. laptop
  7. True
  8. No
  9. the pins
  10. False
  11. True
  12. True
  13. microcontroller
  14. shows the board is on
  15. the voltage regulator
  16. True
  17. True
  18. No
  19. No
  20. flash memory
  21. a TV remote
  22. it starts again
  23. a spinning top
  24. Yes
  25. True
  26. USB or a 9 V battery
  27. a wind-up toy
  28. a computer on one chip
  29. False
  30. keeps the voltage steady
  31. False
  32. a microwave oven
  33. False
  34. a toy robot
  35. the reset button
  36. Yes
  37. uploaded over USB
  38. False
  39. No
  40. True

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