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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 698 · 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.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  2. 2.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  4. 4.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) a wall socket directly (d) bare mains wires
  5. 5.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) runs the program
  6. 6.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  7. 7.True or false: a microcontroller needs much more power. (a) True (b) False
  8. 8.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  9. 9.Which of these has no microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a toy robot (d) a digital thermometer
  10. 10.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  11. 11.Which job is done by the pins? (a) runs the program (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  12. 12.Which of these has no microcontroller inside? (a) a spinning top (b) a microwave oven (c) a toy robot (d) a TV remote
  13. 13.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a hand pump (d) a plain wall switch
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the voltage regulator (d) the USB port
  15. 15.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  16. 16.True or false: a microcontroller has no screen of its own. (a) False (b) True
  17. 17.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  19. 19.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  20. 20.Which of these has no microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a washing machine (d) a toy robot
  21. 21.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
  22. 22.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  23. 23.True or false: a microcontroller runs many apps at once. (a) True (b) False
  24. 24.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  25. 25.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the USB port (c) the power LED (d) the pins
  27. 27.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the pins (c) the USB port (d) the voltage regulator
  28. 28.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
  29. 29.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port
  30. 30.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  32. 32.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a microcontroller uses very little power. (a) False (b) True
  35. 35.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a wind-up toy (d) a spinning top
  37. 37.True or false: a laptop has a built-in keyboard. (a) False (b) True
  38. 38.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  39. 39.True or false: a laptop uses very little power. (a) False (b) True
  40. 40.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a toy robot (d) a hand pump

Answer key

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

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