← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 411 · 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 microwave oven has no microcontroller inside. (a) True (b) False
  2. 2.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  5. 5.True or false: a laptop runs one small program. (a) True (b) False
  6. 6.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  7. 7.True or false: a microcontroller runs one small program. (a) False (b) True
  8. 8.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  9. 9.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  10. 10.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
  11. 11.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a microwave oven (d) a hand pump
  12. 12.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  13. 13.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  14. 14.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
  16. 16.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  17. 17.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a plain wall switch (d) a smart watch
  18. 18.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the reset button (c) the pins (d) the power LED
  19. 19.True or false: a laptop uses very little power. (a) True (b) False
  20. 20.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  21. 21.True or false: a laptop runs many apps at once. (a) False (b) True
  22. 22.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a candle (c) a plain wall switch (d) a spinning top
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the USB port (c) the voltage regulator (d) the reset button
  25. 25.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the reset button (c) the main chip (d) the USB port
  26. 26.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  27. 27.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
  29. 29.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  30. 30.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  31. 31.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
  32. 32.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  33. 33.True or false: a microcontroller runs many apps at once. (a) True (b) False
  34. 34.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
  35. 35.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  36. 36.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  38. 38.Which job is done by the pins? (a) runs the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  39. 39.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the reset button (d) the USB port
  40. 40.Which job is done by the main chip? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program

Answer key

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

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