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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 742 · 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) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
  2. 2.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) runs the program (d) keeps the voltage steady
  3. 3.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  4. 4.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  5. 5.Which of these has no microcontroller inside? (a) a candle (b) a smart watch (c) a TV remote (d) a microwave oven
  6. 6.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  7. 7.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 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
  9. 9.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  10. 10.True or false: a laptop uses very little power. (a) False (b) True
  11. 11.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  12. 12.True or false: a laptop has no screen of its own. (a) False (b) True
  13. 13.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  15. 15.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  16. 16.True or false: a laptop needs much more power. (a) True (b) False
  17. 17.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the reset button (c) the USB port (d) the voltage regulator
  18. 18.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) uploaded over USB (d) drawn with a pen
  20. 20.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the USB port (d) the voltage regulator
  21. 21.Which of these has no microcontroller inside? (a) a microwave oven (b) a hand pump (c) a washing machine (d) a digital thermometer
  22. 22.Which job is done by the main chip? (a) runs the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  23. 23.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a wind-up toy (d) a candle
  24. 24.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  25. 25.True or false: a microcontroller runs one small program. (a) False (b) True
  26. 26.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a candle (d) a wind-up toy
  27. 27.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a wind-up toy (d) a candle
  28. 28.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  29. 29.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  30. 30.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  32. 32.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  33. 33.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the main chip (d) the power LED
  35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a plain wall switch (d) a digital thermometer
  36. 36.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the voltage regulator (d) the reset button
  37. 37.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  38. 38.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) the board breaks (d) it stops forever
  39. 39.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  40. 40.True or false: a microwave oven has no microcontroller inside. (a) True (b) False

Answer key

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

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