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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 61 · 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.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  2. 2.True or false: a microcontroller needs much more power. (a) False (b) True
  3. 3.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  4. 4.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the main chip (d) the voltage regulator
  7. 7.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) uploaded over USB (d) drawn with a pen
  8. 8.True or false: a microcontroller runs one small program. (a) False (b) True
  9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the power LED (d) the voltage regulator
  10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  11. 11.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  12. 12.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  13. 13.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a candle (d) a TV remote
  14. 14.True or false: a laptop needs much more power. (a) False (b) True
  15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  17. 17.Which of these has no microcontroller inside? (a) a microwave oven (b) a spinning top (c) a toy robot (d) a washing machine
  18. 18.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  19. 19.Which job is done by the pins? (a) runs the program (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  20. 20.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a candle (d) a wind-up toy
  21. 21.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator
  22. 22.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a hand pump (c) a bicycle bell (d) a wind-up toy
  23. 23.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  24. 24.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  26. 26.True or false: a laptop runs one small program. (a) True (b) False
  27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  28. 28.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) shows the board is on (d) restarts the program
  29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  30. 30.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  32. 32.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a digital alarm clock
  33. 33.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  34. 34.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a toy robot (d) a wind-up toy
  35. 35.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) runs the program (d) shows the board is on
  36. 36.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  37. 37.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  38. 38.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  39. 39.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 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

Answer key

  1. flash memory
  2. False
  3. False
  4. No
  5. microcontroller
  6. the pins
  7. uploaded over USB
  8. True
  9. the USB port
  10. microcontroller
  11. False
  12. No
  13. a TV remote
  14. True
  15. microcontroller
  16. No
  17. a spinning top
  18. True
  19. connect sensors and LEDs
  20. a digital thermometer
  21. the reset button
  22. a microwave oven
  23. No
  24. Yes
  25. False
  26. False
  27. Yes
  28. runs the program
  29. it starts again
  30. False
  31. laptop
  32. a digital alarm clock
  33. True
  34. a wind-up toy
  35. restarts the program
  36. laptop
  37. Yes
  38. laptop
  39. Yes
  40. a computer on one chip

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