← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 55 · 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 washing machine usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) uploaded over USB (d) drawn with a pen
  3. 3.True or false: a laptop has no screen of its own. (a) True (b) False
  4. 4.True or false: a microcontroller uses very little power. (a) False (b) True
  5. 5.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the pins (d) the reset button
  6. 6.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a toy robot (d) a candle
  7. 7.Which of these has no microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a TV remote (d) a smart watch
  8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  9. 9.Which job is done by the pins? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  10. 10.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
  11. 11.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  12. 12.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  13. 13.True or false: a microcontroller 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 candle (c) a washing machine (d) a wind-up toy
  15. 15.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a plain wall switch (d) a toy robot
  16. 16.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a digital thermometer (d) a hand pump
  17. 17.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  18. 18.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  20. 20.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  21. 21.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  23. 23.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  26. 26.True or false: a microcontroller needs much more power. (a) True (b) False
  27. 27.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  29. 29.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a wind-up toy (d) a digital thermometer
  30. 30.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the reset button (d) the pins
  31. 31.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
  33. 33.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  34. 34.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  35. 35.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the USB cable (d) the power LED
  37. 37.True or false: a microcontroller runs one small program. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a plain wall switch (d) a washing machine
  39. 39.Which job is done by the voltage regulator? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  40. 40.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a spinning top (d) a candle

Answer key

  1. Yes
  2. uploaded over USB
  3. False
  4. True
  5. the pins
  6. a candle
  7. a wind-up toy
  8. it starts again
  9. connect sensors and LEDs
  10. restarts the program
  11. brings power and code
  12. No
  13. False
  14. a washing machine
  15. a toy robot
  16. a hand pump
  17. False
  18. No
  19. laptop
  20. Yes
  21. False
  22. microcontroller
  23. Yes
  24. laptop
  25. Yes
  26. False
  27. runs the program
  28. microcontroller
  29. a digital thermometer
  30. the USB port
  31. Yes
  32. a computer on one chip
  33. Yes
  34. False
  35. Yes
  36. flash memory
  37. True
  38. a plain wall switch
  39. keeps the voltage steady
  40. a microwave oven

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