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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 304 · 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.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  2. 2.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  3. 3.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the reset button (d) the voltage regulator
  5. 5.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  7. 7.True or false: a laptop needs much more power. (a) True (b) False
  8. 8.True or false: a microcontroller needs much more power. (a) True (b) False
  9. 9.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the USB port (d) the pins
  12. 12.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  13. 13.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the reset button (d) the main chip
  14. 14.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  15. 15.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  16. 16.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a smart watch (d) a wind-up toy
  17. 17.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  18. 18.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a spinning top (d) a microwave oven
  19. 19.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a smart watch (d) a washing machine
  20. 20.🤖 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
  21. 21.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a wall socket directly (d) a 230 V cable
  24. 24.Which job is done by the power LED? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  25. 25.Which job is done by the reset button? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  26. 26.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  27. 27.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
  28. 28.True or false: a laptop runs many apps at once. (a) False (b) True
  29. 29.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a digital thermometer (d) a hand pump
  30. 30.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a microcontroller has no screen of its own. (a) False (b) True
  32. 32.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the power LED (d) the reset button
  33. 33.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) restarts the program
  34. 34.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  35. 35.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator
  36. 36.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  38. 38.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  40. 40.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False

Answer key

  1. laptop
  2. a computer on one chip
  3. False
  4. the main chip
  5. Yes
  6. microcontroller
  7. True
  8. False
  9. Yes
  10. laptop
  11. the pins
  12. microcontroller
  13. the USB port
  14. microcontroller
  15. uploaded over USB
  16. a smart watch
  17. False
  18. a microwave oven
  19. a wind-up toy
  20. flash memory
  21. Yes
  22. True
  23. USB or a 9 V battery
  24. shows the board is on
  25. restarts the program
  26. Yes
  27. it starts again
  28. True
  29. a digital thermometer
  30. True
  31. True
  32. the voltage regulator
  33. brings power and code
  34. False
  35. the reset button
  36. No
  37. True
  38. No
  39. Yes
  40. False

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