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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 573 · 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.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  2. 2.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  3. 3.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the pins (c) the reset button (d) the USB port
  4. 4.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  5. 5.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  6. 6.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a smart watch (d) a wind-up toy
  7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the power LED (d) the USB port
  10. 10.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) typed on the chip (d) sent by sound
  12. 12.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  13. 13.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) runs the program
  14. 14.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  15. 15.Which job is done by the USB port? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) brings power and code
  16. 16.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a wind-up toy (d) a hand pump
  17. 17.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  18. 18.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  20. 20.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the USB port (d) the pins
  21. 21.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  22. 22.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
  24. 24.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a spinning top (c) a plain wall switch (d) a candle
  27. 27.Which job is done by the main chip? (a) shows the board is on (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  28. 28.True or false: a microcontroller runs one small program. (a) False (b) True
  29. 29.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  30. 30.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  31. 31.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  32. 32.Which of these has no microcontroller inside? (a) a spinning top (b) a TV remote (c) a microwave oven (d) a toy robot
  33. 33.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a toy robot (d) a bicycle bell
  34. 34.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  35. 35.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the pins (d) the main chip
  36. 36.True or false: a microcontroller runs many apps at once. (a) True (b) False
  37. 37.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the voltage regulator (d) the power LED
  38. 38.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  39. 39.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a digital alarm clock (d) a candle
  40. 40.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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