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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 191 · 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.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  2. 2.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  3. 3.Which of these usually has a microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a bicycle bell (d) a hand pump
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the pins (d) the USB port
  5. 5.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a laptop needs much more power. (a) True (b) False
  7. 7.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a TV remote (d) a microwave oven
  8. 8.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
  9. 9.Which job is done by the main chip? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) runs the program
  10. 10.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  11. 11.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  12. 12.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  13. 13.True or false: a microcontroller runs one small program. (a) True (b) False
  14. 14.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  15. 15.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  16. 16.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) brings power and code
  17. 17.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) runs the program (d) connect sensors and LEDs
  18. 18.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  19. 19.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a microcontroller uses very little power. (a) True (b) False
  22. 22.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  23. 23.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  24. 24.Which job is done by the power LED? (a) brings power and code (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  25. 25.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  27. 27.True or false: a microcontroller runs many apps at once. (a) False (b) True
  28. 28.Which of these has no microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a smart watch (d) a washing machine
  29. 29.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the power LED (c) the voltage regulator (d) the reset button
  30. 30.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  31. 31.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
  32. 32.Which job is done by the USB port? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
  33. 33.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  34. 34.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) uploaded over USB (d) drawn with a pen
  35. 35.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  36. 36.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the main chip (c) the pins (d) the power LED
  38. 38.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a spinning top (d) a digital thermometer
  39. 39.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  40. 40.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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