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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 258 · 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) runs the program (b) keeps the voltage steady (c) brings power and code (d) connect sensors and LEDs
  2. 2.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  3. 3.Which job is done by the voltage regulator? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  4. 4.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a bicycle bell (d) a washing machine
  5. 5.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  6. 6.Which job is done by the main chip? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  7. 7.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) typed on the chip (d) sent by sound
  8. 8.True or false: a microcontroller runs one small program. (a) False (b) True
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  10. 10.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  11. 11.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the voltage regulator (d) the USB port
  12. 12.Which of these has no microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a smart watch (d) a digital thermometer
  13. 13.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  14. 14.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the reset button (d) the USB port
  16. 16.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  17. 17.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  18. 18.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  19. 19.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  21. 21.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a smart watch (d) a toy robot
  23. 23.Which job is done by the power LED? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  24. 24.Which of these has no microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a smart watch (d) a digital thermometer
  25. 25.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the main chip (d) the power LED
  27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the pins (c) the reset button (d) the USB port
  29. 29.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  32. 32.True or false: a laptop has no screen of its own. (a) True (b) False
  33. 33.Which job is done by the reset button? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
  34. 34.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  35. 35.True or false: a microcontroller runs many apps at once. (a) False (b) True
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
  38. 38.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  39. 39.True or false: a microcontroller uses very little power. (a) True (b) False
  40. 40.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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