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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 405 · 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) True (b) False
  2. 2.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  3. 3.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  5. 5.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  6. 6.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the pins (d) the USB port
  8. 8.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  9. 9.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  10. 10.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
  11. 11.True or false: a laptop has no screen of its own. (a) True (b) False
  12. 12.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  13. 13.Which of these has no microcontroller inside? (a) a washing machine (b) a hand pump (c) a digital alarm clock (d) a TV remote
  14. 14.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  15. 15.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the pins (c) the main chip (d) the reset button
  16. 16.True or false: a microcontroller needs much more power. (a) False (b) True
  17. 17.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  18. 18.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  19. 19.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  21. 21.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  22. 22.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  24. 24.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a toy robot (d) a TV remote
  25. 25.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the voltage regulator (c) the pins (d) the USB port
  27. 27.True or false: a laptop uses very little power. (a) True (b) False
  28. 28.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  30. 30.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  32. 32.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a spinning top (d) a wind-up toy
  33. 33.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  34. 34.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  35. 35.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  36. 36.True or false: a candle has no microcontroller inside. (a) True (b) False
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  38. 38.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a digital thermometer (d) a wind-up toy
  39. 39.True or false: a microcontroller runs one small program. (a) True (b) False
  40. 40.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a digital alarm clock (d) a bicycle bell

Answer key

  1. True
  2. False
  3. False
  4. laptop
  5. USB or a 9 V battery
  6. No
  7. the USB port
  8. False
  9. restarts the program
  10. uploaded over USB
  11. False
  12. Yes
  13. a hand pump
  14. laptop
  15. the reset button
  16. False
  17. flash memory
  18. a computer on one chip
  19. False
  20. microcontroller
  21. False
  22. True
  23. laptop
  24. a bicycle bell
  25. No
  26. the main chip
  27. False
  28. False
  29. it starts again
  30. False
  31. True
  32. a toy robot
  33. connect sensors and LEDs
  34. Yes
  35. runs the program
  36. True
  37. microcontroller
  38. a wind-up toy
  39. True
  40. a digital alarm clock

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