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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 469 · 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.

NameDateTime takenScore ___ / 40
  1. 1.True or false: a laptop needs much more power. (a) False (b) True
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  3. 3.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  4. 4.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  5. 5.True or false: a laptop has no screen of its own. (a) True (b) False
  6. 6.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  7. 7.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a toy robot (d) a TV remote
  8. 8.Which job is done by the voltage regulator? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  9. 9.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a spinning top (d) a hand pump
  10. 10.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a big desktop computer (d) a computer on one chip
  12. 12.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
  14. 14.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the main chip (c) the USB port (d) the power LED
  15. 15.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  17. 17.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  18. 18.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  19. 19.True or false: a microcontroller runs one small program. (a) False (b) True
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a TV remote (d) a candle
  21. 21.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the USB port (d) the pins
  22. 22.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  23. 23.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the power LED (d) the voltage regulator
  25. 25.Which of these usually has a microcontroller inside? (a) a spinning top (b) a smart watch (c) a hand pump (d) a bicycle bell
  26. 26.True or false: a laptop has a built-in keyboard. (a) False (b) True
  27. 27.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  29. 29.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  30. 30.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a smart watch (d) a digital thermometer
  31. 31.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the voltage regulator (d) the reset button
  32. 32.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  33. 33.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  34. 34.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a microcontroller runs many apps at once. (a) True (b) False
  36. 36.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  37. 37.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  38. 38.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  39. 39.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  40. 40.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. True
  2. No
  3. False
  4. True
  5. False
  6. False
  7. a bicycle bell
  8. keeps the voltage steady
  9. a washing machine
  10. No
  11. a computer on one chip
  12. No
  13. USB or a 9 V battery
  14. the power LED
  15. Yes
  16. microcontroller
  17. True
  18. microcontroller
  19. True
  20. a TV remote
  21. the pins
  22. Yes
  23. False
  24. the voltage regulator
  25. a smart watch
  26. True
  27. No
  28. True
  29. runs the program
  30. a candle
  31. the reset button
  32. connect sensors and LEDs
  33. microcontroller
  34. No
  35. False
  36. restarts the program
  37. False
  38. uploaded over USB
  39. False
  40. Yes

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