← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 630 · 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.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  2. 2.True or false: a microcontroller uses very little power. (a) False (b) True
  3. 3.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the main chip (d) the pins
  5. 5.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  6. 6.🤖 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
  7. 7.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the power LED (d) the main chip
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  10. 10.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
  11. 11.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  12. 12.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  13. 13.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a washing machine (d) a digital alarm clock
  14. 14.True or false: a laptop has a built-in keyboard. (a) False (b) True
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  16. 16.True or false: a laptop uses very little power. (a) True (b) False
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  18. 18.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  19. 19.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the power LED (d) the USB port
  20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  22. 22.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a plain wall switch (d) a smart watch
  23. 23.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  24. 24.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  26. 26.True or false: a microcontroller runs many apps at once. (a) True (b) False
  27. 27.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) runs the program
  28. 28.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  30. 30.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  31. 31.Which job is done by the USB port? (a) keeps the voltage steady (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  32. 32.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the USB port (d) the pins
  33. 33.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the main chip (c) the voltage regulator (d) the pins
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a wind-up toy (d) a digital thermometer
  37. 37.🤖 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
  38. 38.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a candle (d) a digital alarm clock
  39. 39.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  40. 40.Which of these usually has a microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a wind-up toy (d) a candle

Answer key

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

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