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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 371 · 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.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  3. 3.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  4. 4.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  5. 5.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a washing machine (d) a hand pump
  6. 6.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the reset button (c) the power LED (d) the USB port
  8. 8.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a toy robot (d) a spinning top
  9. 9.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  10. 10.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  12. 12.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the voltage regulator (d) the pins
  13. 13.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  14. 14.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  15. 15.True or false: a laptop runs one small program. (a) True (b) False
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  18. 18.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  19. 19.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  21. 21.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a microwave oven (d) a bicycle bell
  22. 22.True or false: a microcontroller runs many apps at once. (a) True (b) False
  23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the voltage regulator (c) the power LED (d) the USB port
  24. 24.Which job is done by the power LED? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
  25. 25.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a digital thermometer (d) a candle
  26. 26.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  27. 27.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
  28. 28.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  29. 29.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the USB port (d) the reset button
  30. 30.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  31. 31.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  32. 32.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a digital thermometer (d) a smart watch
  33. 33.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a TV remote (d) a hand pump
  34. 34.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  35. 35.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  36. 36.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  37. 37.Which job is done by the main chip? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) runs the program
  38. 38.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  39. 39.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  40. 40.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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