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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 599 · 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 part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the reset button (d) the voltage regulator
  2. 2.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a bicycle bell (d) a washing machine
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  4. 4.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  5. 5.🤖 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
  6. 6.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  7. 7.True or false: a laptop runs one small program. (a) True (b) False
  8. 8.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  9. 9.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  10. 10.True or false: a laptop needs much more power. (a) False (b) True
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  12. 12.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the reset button (d) the voltage regulator
  14. 14.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  15. 15.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  16. 16.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) runs the program
  17. 17.True or false: a laptop uses very little power. (a) True (b) False
  18. 18.Which job is done by the reset button? (a) runs the program (b) restarts the program (c) shows the board is on (d) brings power and code
  19. 19.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the power LED (c) the USB port (d) the pins
  20. 20.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  21. 21.Which of these usually has a microcontroller inside? (a) a hand pump (b) a microwave oven (c) a plain wall switch (d) a bicycle bell
  22. 22.True or false: a microcontroller needs much more power. (a) False (b) True
  23. 23.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  24. 24.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
  25. 25.Which job is done by the power LED? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
  26. 26.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  27. 27.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the pins (d) the main chip
  28. 28.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  29. 29.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  30. 30.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) runs the program (d) keeps the voltage steady
  31. 31.🤖 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
  32. 32.Which of these has no microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a TV remote (d) a toy robot
  33. 33.Which of these has no microcontroller inside? (a) a spinning top (b) a TV remote (c) a digital alarm clock (d) a toy robot
  34. 34.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a smart watch (d) a candle
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a digital alarm clock (d) a bicycle bell
  36. 36.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  37. 37.True or false: a microcontroller uses very little power. (a) True (b) False
  38. 38.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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