← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 118 · 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.Which of these has no microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a smart watch (d) a digital alarm clock
  3. 3.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the voltage regulator (c) the USB port (d) the pins
  4. 4.Which job is done by the pins? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  5. 5.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
  6. 6.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a washing machine (d) a plain wall switch
  7. 7.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  8. 8.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the main chip (c) the reset button (d) the power LED
  9. 9.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  10. 10.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the pins (c) the USB port (d) the main chip
  12. 12.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  13. 13.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  14. 14.True or false: a microcontroller runs many apps at once. (a) False (b) True
  15. 15.True or false: a microcontroller has no screen of its own. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the power LED (c) the reset button (d) the pins
  17. 17.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  18. 18.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a wind-up toy (d) a smart watch
  19. 19.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  20. 20.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a laptop runs one small program. (a) True (b) False
  22. 22.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  23. 23.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a wind-up toy (d) a spinning top
  24. 24.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  25. 25.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the voltage regulator (d) the main chip
  27. 27.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 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
  31. 31.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  32. 32.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a candle (d) a washing machine
  33. 33.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a plain wall switch (d) a bicycle bell
  34. 34.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  35. 35.True or false: a laptop runs many apps at once. (a) False (b) True
  36. 36.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
  37. 37.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  38. 38.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  39. 39.True or false: a laptop needs much more power. (a) False (b) True
  40. 40.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the power LED (d) the USB cable

Answer key

  1. False
  2. a bicycle bell
  3. the main chip
  4. connect sensors and LEDs
  5. uploaded over USB
  6. a plain wall switch
  7. microcontroller
  8. the power LED
  9. False
  10. Yes
  11. the pins
  12. True
  13. restarts the program
  14. False
  15. True
  16. the reset button
  17. False
  18. a wind-up toy
  19. False
  20. No
  21. False
  22. runs the program
  23. a TV remote
  24. laptop
  25. Yes
  26. the voltage regulator
  27. Yes
  28. No
  29. Yes
  30. USB or a 9 V battery
  31. True
  32. a candle
  33. a washing machine
  34. False
  35. True
  36. a computer on one chip
  37. False
  38. False
  39. True
  40. flash memory

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids