← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 325 · 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 connect sensors and LEDs? (a) the voltage regulator (b) the pins (c) the power LED (d) the USB port
  2. 2.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  3. 3.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  4. 4.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  6. 6.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  7. 7.True or false: a laptop runs one small program. (a) True (b) False
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  9. 9.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  10. 10.Which job is done by the main chip? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program
  11. 11.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  12. 12.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  14. 14.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  15. 15.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a wind-up toy (d) a candle
  16. 16.True or false: a laptop has no screen of its own. (a) True (b) False
  17. 17.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  18. 18.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  20. 20.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the power LED (d) the reset button
  21. 21.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  22. 22.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 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
  24. 24.True or false: a laptop needs much more power. (a) False (b) True
  25. 25.Which job is done by the voltage regulator? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  26. 26.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) shows the board is on (d) restarts the program
  27. 27.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  28. 28.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  29. 29.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  30. 30.True or false: a microcontroller runs many apps at once. (a) False (b) True
  31. 31.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  32. 32.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a spinning top (d) a digital thermometer
  33. 33.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
  35. 35.🤖 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
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a wind-up toy (d) a TV remote
  37. 37.True or false: a microcontroller has no screen of its own. (a) False (b) True
  38. 38.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  39. 39.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the voltage regulator (d) the main chip

Answer key

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

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