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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 196 · 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 of these usually has a microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a candle (d) a plain wall switch
  2. 2.Which of these has no microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a toy robot (d) a washing machine
  3. 3.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the USB port (d) the reset button
  4. 4.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the pins (d) the main chip
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the power LED (d) the voltage regulator
  6. 6.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  7. 7.Which job is done by the main chip? (a) brings power and code (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  8. 8.True or false: a microcontroller has no screen of its own. (a) False (b) True
  9. 9.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  10. 10.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the power LED (d) the reset button
  12. 12.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  14. 14.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  15. 15.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  16. 16.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  17. 17.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  18. 18.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a plain wall switch (d) a microwave oven
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
  20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  21. 21.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a microwave oven (d) a bicycle bell
  23. 23.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the power LED (c) the main chip (d) the reset button
  24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the main chip (c) the reset button (d) the voltage regulator
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  26. 26.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  27. 27.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a smart watch (d) a digital thermometer
  28. 28.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  29. 29.True or false: a microcontroller runs one small program. (a) True (b) False
  30. 30.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a candle (d) a washing machine
  31. 31.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  32. 32.True or false: a laptop has no screen of its own. (a) True (b) False
  33. 33.True or false: a microcontroller needs much more power. (a) True (b) False
  34. 34.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  35. 35.True or false: a laptop uses very little power. (a) False (b) True
  36. 36.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a smart watch (d) a bicycle bell
  37. 37.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  38. 38.🤖 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
  39. 39.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  40. 40.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False

Answer key

  1. a washing machine
  2. a bicycle bell
  3. the USB port
  4. the pins
  5. the main chip
  6. flash memory
  7. runs the program
  8. True
  9. True
  10. False
  11. the voltage regulator
  12. Yes
  13. False
  14. microcontroller
  15. Yes
  16. connect sensors and LEDs
  17. False
  18. a plain wall switch
  19. USB or a 9 V battery
  20. laptop
  21. Yes
  22. a microwave oven
  23. the power LED
  24. the reset button
  25. laptop
  26. False
  27. a spinning top
  28. True
  29. True
  30. a candle
  31. shows the board is on
  32. False
  33. False
  34. a computer on one chip
  35. False
  36. a smart watch
  37. True
  38. it starts again
  39. microcontroller
  40. False

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