← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 421 · 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.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  2. 2.True or false: a laptop uses very little power. (a) False (b) True
  3. 3.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a digital thermometer (d) a candle
  4. 4.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the main chip (d) the reset button
  6. 6.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  7. 7.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  8. 8.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the power LED (c) the USB port (d) the main chip
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the power LED (d) the voltage regulator
  11. 11.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  12. 12.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  13. 13.Which job is done by the USB port? (a) keeps the voltage steady (b) runs the program (c) brings power and code (d) shows the board is on
  14. 14.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  15. 15.True or false: a laptop runs one small program. (a) False (b) True
  16. 16.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
  17. 17.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  19. 19.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) runs the program
  20. 20.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a bicycle bell (c) a digital thermometer (d) a microwave oven
  21. 21.True or false: a laptop has no screen of its own. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the USB port (c) the reset button (d) the main chip
  23. 23.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  24. 24.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  25. 25.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  26. 26.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) runs the program (d) shows the board is on
  27. 27.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  28. 28.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the reset button (d) the main chip
  31. 31.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  32. 32.Which job is done by the reset button? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) runs the program
  33. 33.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  34. 34.True or false: a microcontroller uses very little power. (a) True (b) False
  35. 35.True or false: a laptop runs many apps at once. (a) False (b) True
  36. 36.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  37. 37.True or false: a microcontroller needs much more power. (a) False (b) True
  38. 38.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) typed on the chip (d) sent by sound
  39. 39.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  40. 40.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a TV remote (d) a candle

Answer key

  1. laptop
  2. False
  3. a digital thermometer
  4. No
  5. the reset button
  6. laptop
  7. Yes
  8. True
  9. the pins
  10. the voltage regulator
  11. False
  12. False
  13. brings power and code
  14. Yes
  15. False
  16. a computer on one chip
  17. No
  18. Yes
  19. keeps the voltage steady
  20. a bicycle bell
  21. False
  22. the main chip
  23. True
  24. False
  25. True
  26. runs the program
  27. flash memory
  28. Yes
  29. USB or a 9 V battery
  30. the USB port
  31. microcontroller
  32. restarts the program
  33. True
  34. True
  35. True
  36. True
  37. False
  38. uploaded over USB
  39. False
  40. a candle

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