← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 518 · 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.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
  2. 2.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  3. 3.True or false: a laptop uses very little power. (a) True (b) False
  4. 4.Which of these has no microcontroller inside? (a) a TV remote (b) a toy robot (c) a washing machine (d) a hand pump
  5. 5.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the USB port (d) the pins
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the reset button (c) the voltage regulator (d) the USB port
  7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  8. 8.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  9. 9.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a hand pump (d) a toy robot
  11. 11.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a laptop has a built-in keyboard. (a) True (b) False
  13. 13.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the voltage regulator (c) the reset button (d) the pins
  15. 15.Which job is done by the pins? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) connect sensors and LEDs
  16. 16.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
  18. 18.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  19. 19.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a spinning top (d) a candle
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  21. 21.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a wind-up toy (d) a digital alarm clock
  22. 22.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  24. 24.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it stops forever (c) it deletes itself (d) the board breaks
  25. 25.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  26. 26.Which of these has no microcontroller inside? (a) a candle (b) a smart watch (c) a digital alarm clock (d) a microwave oven
  27. 27.True or false: a laptop has no screen of its own. (a) True (b) False
  28. 28.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  29. 29.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  30. 30.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  31. 31.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  32. 32.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  33. 33.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a microcontroller has no screen of its own. (a) False (b) True
  35. 35.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  36. 36.True or false: a microcontroller needs much more power. (a) False (b) True
  37. 37.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  38. 38.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the USB port (c) the voltage regulator (d) the power LED
  39. 39.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller

Answer key

  1. uploaded over USB
  2. brings power and code
  3. False
  4. a hand pump
  5. the main chip
  6. the voltage regulator
  7. laptop
  8. laptop
  9. No
  10. a toy robot
  11. Yes
  12. True
  13. No
  14. the pins
  15. connect sensors and LEDs
  16. No
  17. USB or a 9 V battery
  18. flash memory
  19. a washing machine
  20. microcontroller
  21. a wind-up toy
  22. Yes
  23. False
  24. it starts again
  25. Yes
  26. a candle
  27. False
  28. restarts the program
  29. False
  30. False
  31. True
  32. microcontroller
  33. False
  34. True
  35. False
  36. False
  37. False
  38. the power LED
  39. True
  40. microcontroller

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