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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 294 · 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.

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

Answer key

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

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