← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 730 · 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.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which job is done by the pins? (a) shows the board is on (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  3. 3.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  4. 4.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) restarts the program (d) runs the program
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  6. 6.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
  7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  8. 8.Which job is done by the reset button? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  9. 9.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the pins
  10. 10.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  12. 12.Which of these usually has a microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a wind-up toy (d) a candle
  13. 13.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the voltage regulator (d) the reset button
  14. 14.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  15. 15.Which job is done by the USB port? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  16. 16.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a digital alarm clock (d) a hand pump
  17. 17.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  19. 19.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a smart watch (d) a hand pump
  20. 20.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the power LED (d) the resistor
  21. 21.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a bicycle bell (d) a candle
  22. 22.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  23. 23.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  24. 24.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  25. 25.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a TV remote (d) a microwave oven
  27. 27.True or false: a laptop runs many apps at once. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  29. 29.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  30. 30.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) a wall socket directly (d) USB or a 9 V battery
  31. 31.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  32. 32.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  33. 33.True or false: a microcontroller has no screen of its own. (a) True (b) False
  34. 34.Which job is done by the voltage regulator? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  35. 35.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  36. 36.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  37. 37.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a toy robot (d) a microwave oven
  38. 38.True or false: a laptop uses very little power. (a) True (b) False
  39. 39.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  40. 40.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code

Answer key

  1. No
  2. connect sensors and LEDs
  3. microcontroller
  4. runs the program
  5. microcontroller
  6. a computer on one chip
  7. No
  8. restarts the program
  9. the main chip
  10. True
  11. it starts again
  12. a toy robot
  13. the reset button
  14. True
  15. brings power and code
  16. a hand pump
  17. Yes
  18. True
  19. a smart watch
  20. flash memory
  21. a digital thermometer
  22. True
  23. True
  24. laptop
  25. Yes
  26. a candle
  27. True
  28. laptop
  29. False
  30. USB or a 9 V battery
  31. False
  32. Yes
  33. True
  34. keeps the voltage steady
  35. No
  36. True
  37. a bicycle bell
  38. False
  39. False
  40. shows the board is on

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