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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 578 · 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) microcontroller (b) laptop
  2. 2.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the reset button (c) the pins (d) the voltage regulator
  3. 3.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  4. 4.Which of these usually has a microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a wind-up toy (d) a candle
  5. 5.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  6. 6.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a microwave oven (d) a digital thermometer
  7. 7.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) drawn with a pen (d) sent by sound
  8. 8.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  9. 9.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  11. 11.True or false: a laptop runs one small program. (a) True (b) False
  12. 12.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a digital thermometer (d) a toy robot
  13. 13.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  14. 14.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on
  15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the reset button (d) the voltage regulator
  16. 16.True or false: a laptop has no screen of its own. (a) True (b) False
  17. 17.True or false: a laptop uses very little power. (a) True (b) False
  18. 18.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  19. 19.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  20. 20.Which job is done by the power LED? (a) brings power and code (b) shows the board is on (c) restarts the program (d) runs the program
  21. 21.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the power LED (c) the voltage regulator (d) the USB port
  22. 22.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the reset button (d) the main chip
  23. 23.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
  25. 25.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a microcontroller needs much more power. (a) True (b) False
  27. 27.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a candle (d) a smart watch
  28. 28.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  29. 29.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  30. 30.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  31. 31.Which of these has no microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a digital thermometer (d) a digital alarm clock
  32. 32.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a hand pump (d) a digital alarm clock
  33. 33.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  34. 34.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  35. 35.Which of these has no microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a smart watch (d) a digital thermometer
  36. 36.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  39. 39.🤖 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
  40. 40.True or false: a toy robot has no microcontroller inside. (a) False (b) True

Answer key

  1. laptop
  2. the pins
  3. flash memory
  4. a washing machine
  5. True
  6. a spinning top
  7. uploaded over USB
  8. False
  9. No
  10. microcontroller
  11. False
  12. a candle
  13. False
  14. runs the program
  15. the reset button
  16. False
  17. False
  18. False
  19. microcontroller
  20. shows the board is on
  21. the main chip
  22. the power LED
  23. Yes
  24. it starts again
  25. No
  26. False
  27. a smart watch
  28. False
  29. No
  30. Yes
  31. a plain wall switch
  32. a digital alarm clock
  33. False
  34. connect sensors and LEDs
  35. a bicycle bell
  36. Yes
  37. No
  38. laptop
  39. a computer on one chip
  40. False

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