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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 292 · 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.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  2. 2.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  3. 3.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  4. 4.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a candle (d) a washing machine
  5. 5.True or false: a microcontroller uses very little power. (a) False (b) True
  6. 6.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  7. 7.Which job is done by the power LED? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  8. 8.Which job is done by the pins? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  9. 9.True or false: a microcontroller has no screen of its own. (a) False (b) True
  10. 10.🤖 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
  11. 11.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the main chip (d) the reset button
  12. 12.Which job is done by the main chip? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  13. 13.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  15. 15.True or false: a laptop runs many apps at once. (a) True (b) False
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the pins (d) the voltage regulator
  17. 17.True or false: a laptop runs one small program. (a) False (b) True
  18. 18.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  19. 19.Which job is done by the voltage regulator? (a) restarts the program (b) runs the program (c) brings power and code (d) keeps the voltage steady
  20. 20.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the power LED (c) the pins (d) the USB port
  21. 21.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  22. 22.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
  23. 23.True or false: a laptop has a built-in keyboard. (a) True (b) False
  24. 24.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a toy robot (d) a digital alarm clock
  25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the USB port (d) the voltage regulator
  26. 26.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  27. 27.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  28. 28.True or false: a microcontroller runs many apps at once. (a) False (b) True
  29. 29.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
  30. 30.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the pins (d) the power LED
  32. 32.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  34. 34.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  35. 35.🤖 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
  36. 36.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  38. 38.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the power LED (d) the main chip
  39. 39.Which of these has no microcontroller inside? (a) a spinning top (b) a washing machine (c) a TV remote (d) a toy robot
  40. 40.True or false: a toy robot has no microcontroller inside. (a) False (b) True

Answer key

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

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