← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

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

Answer key

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

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