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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 700 · 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.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  2. 2.Which job is done by the power LED? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  3. 3.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a candle (d) a washing machine
  4. 4.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the voltage regulator (c) the USB port (d) the power LED
  6. 6.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  7. 7.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a TV remote (d) a spinning top
  8. 8.Which job is done by the main chip? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program
  9. 9.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  10. 10.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  11. 11.True or false: a microcontroller runs many apps at once. (a) False (b) True
  12. 12.Which of these has no microcontroller inside? (a) a smart watch (b) a candle (c) a digital alarm clock (d) a washing machine
  13. 13.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  14. 14.True or false: a laptop uses very little power. (a) True (b) False
  15. 15.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  16. 16.True or false: a microcontroller uses very little power. (a) False (b) True
  17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the power LED (d) the pins
  18. 18.True or false: a laptop has a built-in keyboard. (a) True (b) False
  19. 19.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
  20. 20.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  21. 21.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  22. 22.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a hand pump (d) a toy robot
  23. 23.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  27. 27.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the voltage regulator (c) the USB port (d) the reset button
  28. 28.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  30. 30.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  31. 31.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
  32. 32.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  33. 33.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a wind-up toy (d) a candle
  35. 35.True or false: a laptop runs many apps at once. (a) True (b) False
  36. 36.True or false: a laptop has no screen of its own. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  38. 38.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller

Answer key

  1. it starts again
  2. shows the board is on
  3. a washing machine
  4. Yes
  5. the power LED
  6. Yes
  7. a spinning top
  8. runs the program
  9. True
  10. a computer on one chip
  11. False
  12. a candle
  13. Yes
  14. False
  15. flash memory
  16. True
  17. the pins
  18. True
  19. uploaded over USB
  20. True
  21. microcontroller
  22. a hand pump
  23. Yes
  24. No
  25. Yes
  26. False
  27. the USB port
  28. No
  29. microcontroller
  30. False
  31. USB or a 9 V battery
  32. False
  33. Yes
  34. a toy robot
  35. True
  36. False
  37. laptop
  38. False
  39. Yes
  40. microcontroller

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