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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 717 · 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 washing machine has no microcontroller inside. (a) False (b) True
  2. 2.True or false: a laptop runs many apps at once. (a) False (b) True
  3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
  5. 5.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
  6. 6.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
  7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
  8. 8.True or false: a laptop runs one small program. (a) True (b) False
  9. 9.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  10. 10.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a smart watch (d) a hand pump
  11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it deletes itself (d) it starts again
  12. 12.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  13. 13.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  14. 14.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the pins (c) the reset button (d) the main chip
  17. 17.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  18. 18.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a microwave oven (d) a spinning top
  19. 19.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a bicycle bell (d) a digital alarm clock
  20. 20.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a microcontroller runs many apps at once. (a) False (b) True
  22. 22.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which of these usually has a microcontroller inside? (a) a candle (b) a TV remote (c) a bicycle bell (d) a hand pump
  24. 24.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  25. 25.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  26. 26.True or false: a microcontroller runs one small program. (a) False (b) True
  27. 27.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the voltage regulator (d) the reset button
  28. 28.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a washing machine (d) a wind-up toy
  29. 29.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the USB port (d) the voltage regulator
  30. 30.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a digital thermometer (d) a bicycle bell
  31. 31.Which job is done by the pins? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  32. 32.True or false: a laptop has a built-in keyboard. (a) True (b) False
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  34. 34.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a toy robot (d) a bicycle bell
  35. 35.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  36. 36.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  37. 37.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these has no microcontroller inside? (a) a candle (b) a smart watch (c) a digital thermometer (d) a TV remote
  39. 39.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  40. 40.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. False
  2. True
  3. Yes
  4. uploaded over USB
  5. a computer on one chip
  6. runs the program
  7. USB or a 9 V battery
  8. False
  9. Yes
  10. a smart watch
  11. it starts again
  12. False
  13. laptop
  14. No
  15. microcontroller
  16. the reset button
  17. True
  18. a spinning top
  19. a digital alarm clock
  20. Yes
  21. False
  22. No
  23. a TV remote
  24. flash memory
  25. True
  26. True
  27. the voltage regulator
  28. a washing machine
  29. the pins
  30. a digital thermometer
  31. connect sensors and LEDs
  32. True
  33. Yes
  34. a toy robot
  35. Yes
  36. True
  37. No
  38. a candle
  39. keeps the voltage steady
  40. No

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