← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 426 · 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.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the USB port (c) the voltage regulator (d) the pins
  2. 2.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  3. 3.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  6. 6.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the power LED (c) the reset button (d) the USB port
  8. 8.True or false: a laptop runs one small program. (a) False (b) True
  9. 9.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  10. 10.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  11. 11.True or false: a microcontroller uses very little power. (a) False (b) True
  12. 12.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  13. 13.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a computer on one chip (d) a big desktop computer
  14. 14.True or false: a laptop has a built-in keyboard. (a) False (b) True
  15. 15.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  16. 16.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) a wall socket directly (d) bare mains wires
  17. 17.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  18. 18.Which of these has no microcontroller inside? (a) a washing machine (b) a candle (c) a digital thermometer (d) a TV remote
  19. 19.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  20. 20.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
  21. 21.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a toy robot
  22. 22.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a wind-up toy (d) a washing machine
  23. 23.True or false: a microcontroller runs one small program. (a) False (b) True
  24. 24.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  25. 25.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  26. 26.🤖 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
  27. 27.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) the board breaks (d) it deletes itself
  28. 28.Which job is done by the USB port? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  29. 29.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  30. 30.Which of these has no microcontroller inside? (a) a microwave oven (b) a spinning top (c) a washing machine (d) a TV remote
  31. 31.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  32. 32.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
  35. 35.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a toy robot (d) a plain wall switch
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  37. 37.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the voltage regulator (d) the main chip
  38. 38.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a wind-up toy (d) a TV remote
  39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  40. 40.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a TV remote (d) a hand pump

Answer key

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

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