← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 237 · 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 of these has no microcontroller inside? (a) a TV remote (b) a spinning top (c) a digital alarm clock (d) a washing machine
  2. 2.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a toy robot (d) a bicycle bell
  3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  4. 4.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the USB port (d) the power LED
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port
  7. 7.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  8. 8.Which of these usually has a microcontroller inside? (a) a TV remote (b) a candle (c) a wind-up toy (d) a hand pump
  9. 9.True or false: a microcontroller runs one small program. (a) False (b) True
  10. 10.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  11. 11.True or false: a laptop has no screen of its own. (a) False (b) True
  12. 12.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the main chip (d) the pins
  14. 14.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🧭 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
  16. 16.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  18. 18.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) brings power and code
  19. 19.True or false: a candle has no microcontroller inside. (a) True (b) False
  20. 20.Which of these has no microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a toy robot (d) a microwave oven
  21. 21.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  22. 22.True or false: a laptop uses very little power. (a) False (b) True
  23. 23.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) it starts again (d) the board breaks
  24. 24.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  25. 25.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  26. 26.🤖 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
  27. 27.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  29. 29.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  30. 30.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the voltage regulator (d) the USB port
  32. 32.Which of these usually has a microcontroller inside? (a) a smart watch (b) a spinning top (c) a bicycle bell (d) a hand pump
  33. 33.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  34. 34.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  36. 36.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
  37. 37.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  38. 38.True or false: a laptop runs many apps at once. (a) True (b) False
  39. 39.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  40. 40.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False

Answer key

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

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