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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 664 · 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 USB port? (a) runs the program (b) restarts the program (c) brings power and code (d) shows the board is on
  2. 2.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  5. 5.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  6. 6.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  7. 7.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a digital thermometer (d) a candle
  8. 8.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  9. 9.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the voltage regulator (d) the power LED
  10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the pins (c) the main chip (d) the USB port
  11. 11.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a microcontroller needs much more power. (a) False (b) True
  13. 13.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  14. 14.True or false: a microcontroller uses very little power. (a) True (b) False
  15. 15.True or false: a microcontroller runs many apps at once. (a) True (b) False
  16. 16.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  18. 18.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
  19. 19.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  20. 20.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  21. 21.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  23. 23.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the reset button (c) the power LED (d) the main chip
  24. 24.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the reset button (d) the power LED
  25. 25.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these has no microcontroller inside? (a) a hand pump (b) a digital thermometer (c) a digital alarm clock (d) a washing machine
  27. 27.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  28. 28.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the USB port (c) the voltage regulator (d) the main chip
  29. 29.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a TV remote (d) a spinning top
  31. 31.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  32. 32.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  33. 33.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  34. 34.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  36. 36.Which job is done by the reset button? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  38. 38.True or false: a laptop uses very little power. (a) True (b) False
  39. 39.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a wind-up toy (d) a microwave oven
  40. 40.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a wind-up toy (d) a washing machine

Answer key

  1. brings power and code
  2. microcontroller
  3. Yes
  4. laptop
  5. True
  6. No
  7. a candle
  8. False
  9. the voltage regulator
  10. the pins
  11. No
  12. False
  13. False
  14. True
  15. False
  16. keeps the voltage steady
  17. uploaded over USB
  18. a computer on one chip
  19. laptop
  20. shows the board is on
  21. No
  22. flash memory
  23. the power LED
  24. the USB port
  25. No
  26. a hand pump
  27. USB or a 9 V battery
  28. the main chip
  29. Yes
  30. a spinning top
  31. runs the program
  32. it starts again
  33. connect sensors and LEDs
  34. Yes
  35. microcontroller
  36. restarts the program
  37. microcontroller
  38. False
  39. a wind-up toy
  40. a washing machine

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