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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 571 · 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.True or false: a microcontroller runs many apps at once. (a) False (b) True
  2. 2.True or false: a laptop uses very little power. (a) False (b) True
  3. 3.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  4. 4.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  6. 6.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a microwave oven (d) a spinning top
  8. 8.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  9. 9.🤖 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
  10. 10.Which job is done by the USB port? (a) restarts the program (b) runs the program (c) shows the board is on (d) brings power and code
  11. 11.Which of these has no microcontroller inside? (a) a hand pump (b) a microwave oven (c) a digital thermometer (d) a TV remote
  12. 12.True or false: a microcontroller uses very little power. (a) False (b) True
  13. 13.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  14. 14.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  15. 15.True or false: a laptop runs one small program. (a) True (b) False
  16. 16.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  17. 17.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a bicycle bell (d) a toy robot
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a bicycle bell (d) a TV remote
  19. 19.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a washing machine (d) a spinning top
  20. 20.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
  21. 21.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the main chip (c) the USB port (d) the reset button
  22. 22.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  24. 24.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
  25. 25.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the reset button (d) the voltage regulator
  26. 26.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  27. 27.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a TV remote (d) a washing machine
  28. 28.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which job is done by the power LED? (a) shows the board is on (b) brings power and code (c) restarts the program (d) runs the program
  30. 30.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  31. 31.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  32. 32.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a digital thermometer (d) a spinning top
  33. 33.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the USB port (d) the power LED
  36. 36.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  38. 38.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  39. 39.True or false: a microcontroller needs much more power. (a) False (b) True
  40. 40.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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