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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 335 · 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 runs one small program? (a) microcontroller (b) laptop
  2. 2.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
  4. 4.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  5. 5.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which of these has no microcontroller inside? (a) a washing machine (b) a spinning top (c) a toy robot (d) a digital thermometer
  7. 7.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  8. 8.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  9. 9.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  10. 10.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  11. 11.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  12. 12.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  13. 13.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the voltage regulator (d) the USB port
  14. 14.Which job is done by the main chip? (a) runs the program (b) restarts the program (c) shows the board is on (d) brings power and code
  15. 15.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the reset button (c) the pins (d) the voltage regulator
  17. 17.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  18. 18.True or false: a laptop needs much more power. (a) False (b) True
  19. 19.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  20. 20.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a hand pump (d) a digital thermometer
  21. 21.True or false: a laptop uses very little power. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the power LED (d) the main chip
  23. 23.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a TV remote (d) a bicycle bell
  24. 24.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  25. 25.True or false: a microcontroller needs much more power. (a) True (b) False
  26. 26.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  27. 27.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  29. 29.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  31. 31.Which job is done by the power LED? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  32. 32.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  33. 33.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  34. 34.True or false: a microcontroller runs one small program. (a) True (b) False
  35. 35.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  36. 36.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) runs the program (d) keeps the voltage steady
  37. 37.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a toy robot (d) a spinning top
  39. 39.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a washing machine (d) a wind-up toy
  40. 40.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. microcontroller
  2. brings power and code
  3. uploaded over USB
  4. Yes
  5. No
  6. a spinning top
  7. keeps the voltage steady
  8. True
  9. a computer on one chip
  10. connect sensors and LEDs
  11. False
  12. microcontroller
  13. the voltage regulator
  14. runs the program
  15. flash memory
  16. the pins
  17. laptop
  18. True
  19. False
  20. a digital thermometer
  21. False
  22. the main chip
  23. a bicycle bell
  24. it starts again
  25. False
  26. Yes
  27. False
  28. laptop
  29. Yes
  30. False
  31. shows the board is on
  32. True
  33. Yes
  34. True
  35. No
  36. restarts the program
  37. No
  38. a toy robot
  39. a wind-up toy
  40. No

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