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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 623 · 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.Which job is done by the pins? (a) shows the board is on (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  2. 2.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the pins (c) the main chip (d) the USB port
  3. 3.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  4. 4.True or false: a candle has no microcontroller inside. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  7. 7.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a wind-up toy (d) a digital thermometer
  8. 8.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  9. 9.Which of these has no microcontroller inside? (a) a smart watch (b) a candle (c) a digital alarm clock (d) a microwave oven
  10. 10.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
  11. 11.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  12. 12.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  13. 13.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  14. 14.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a washing machine (d) a wind-up toy
  15. 15.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a spinning top (d) a toy robot
  16. 16.Which job is done by the main chip? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) runs the program
  17. 17.True or false: a laptop has no screen of its own. (a) True (b) False
  18. 18.Which of these has no microcontroller inside? (a) a TV remote (b) a hand pump (c) a toy robot (d) a microwave oven
  19. 19.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  20. 20.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  21. 21.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  22. 22.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  24. 24.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
  25. 25.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a candle (d) a microwave oven
  26. 26.Which of these has no microcontroller inside? (a) a smart watch (b) a plain wall switch (c) a digital thermometer (d) a microwave oven
  27. 27.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  28. 28.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  29. 29.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  30. 30.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  31. 31.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  32. 32.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  34. 34.Which job is done by the voltage regulator? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  35. 35.True or false: a laptop needs much more power. (a) True (b) False
  36. 36.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  37. 37.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a plain wall switch (d) a digital alarm clock
  38. 38.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  39. 39.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
  40. 40.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the main chip (c) the power LED (d) the reset button

Answer key

  1. connect sensors and LEDs
  2. the USB port
  3. False
  4. True
  5. microcontroller
  6. a computer on one chip
  7. a wind-up toy
  8. laptop
  9. a candle
  10. flash memory
  11. microcontroller
  12. it starts again
  13. True
  14. a washing machine
  15. a toy robot
  16. runs the program
  17. False
  18. a hand pump
  19. Yes
  20. False
  21. Yes
  22. No
  23. laptop
  24. shows the board is on
  25. a microwave oven
  26. a plain wall switch
  27. brings power and code
  28. microcontroller
  29. True
  30. True
  31. Yes
  32. No
  33. Yes
  34. keeps the voltage steady
  35. True
  36. No
  37. a digital alarm clock
  38. False
  39. uploaded over USB
  40. the power LED

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