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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 437 · 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 washing machine usually have a microcontroller inside? (a) Yes (b) No
  3. 3.True or false: a laptop runs many apps at once. (a) True (b) False
  4. 4.True or false: a laptop has no screen of its own. (a) True (b) False
  5. 5.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a hand pump (d) a digital thermometer
  6. 6.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) USB or a 9 V battery (d) bare mains wires
  7. 7.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  8. 8.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the voltage regulator (d) the pins
  9. 9.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  10. 10.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  11. 11.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  13. 13.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  14. 14.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  15. 15.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  16. 16.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  17. 17.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  18. 18.True or false: a laptop uses very little power. (a) False (b) True
  19. 19.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  20. 20.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  21. 21.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a hand pump (d) a microwave oven
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  24. 24.True or false: a laptop has a built-in keyboard. (a) True (b) False
  25. 25.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  26. 26.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a smart watch (d) a spinning top
  27. 27.Which of these has no microcontroller inside? (a) a candle (b) a smart watch (c) a digital alarm clock (d) a microwave oven
  28. 28.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  29. 29.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  30. 30.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  31. 31.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the reset button (d) the USB port
  32. 32.Which of these has no microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a washing machine (d) a digital thermometer
  33. 33.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  34. 34.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  35. 35.True or false: a microcontroller runs one small program. (a) True (b) False
  36. 36.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the voltage regulator (c) the main chip (d) the USB port
  37. 37.Which of these has no microcontroller inside? (a) a TV remote (b) a washing machine (c) a plain wall switch (d) a microwave oven
  38. 38.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  39. 39.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. True
  2. Yes
  3. True
  4. False
  5. a digital thermometer
  6. USB or a 9 V battery
  7. runs the program
  8. the pins
  9. Yes
  10. False
  11. No
  12. microcontroller
  13. laptop
  14. False
  15. False
  16. it starts again
  17. flash memory
  18. False
  19. True
  20. True
  21. a hand pump
  22. No
  23. uploaded over USB
  24. True
  25. Yes
  26. a smart watch
  27. a candle
  28. True
  29. laptop
  30. connect sensors and LEDs
  31. the voltage regulator
  32. a wind-up toy
  33. No
  34. True
  35. True
  36. the main chip
  37. a plain wall switch
  38. brings power and code
  39. Yes
  40. No

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