← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 565 · 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 plain wall switch (b) a washing machine (c) a TV remote (d) a digital alarm clock
  2. 2.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  4. 4.True or false: a laptop has no screen of its own. (a) False (b) True
  5. 5.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  7. 7.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  9. 9.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  11. 11.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  12. 12.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  13. 13.True or false: a microcontroller uses very little power. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the main chip (c) the voltage regulator (d) the reset button
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  16. 16.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a plain wall switch (d) a hand pump
  17. 17.Which job is done by the reset button? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) restarts the program
  18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a wall socket directly (d) a 230 V cable
  19. 19.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  20. 20.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🤖 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
  22. 22.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  23. 23.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  24. 24.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  25. 25.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a digital thermometer (d) a hand pump
  26. 26.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  27. 27.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) restarts the program
  28. 28.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  30. 30.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  31. 31.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the pins (d) the main chip
  32. 32.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
  33. 33.True or false: a microcontroller needs much more power. (a) False (b) True
  34. 34.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
  35. 35.True or false: a laptop runs many apps at once. (a) False (b) True
  36. 36.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a digital alarm clock (d) a hand pump
  37. 37.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a digital thermometer (d) a wind-up toy
  38. 38.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a hand pump (d) a bicycle bell
  39. 39.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  40. 40.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No

Answer key

  1. a plain wall switch
  2. Yes
  3. No
  4. False
  5. Yes
  6. False
  7. No
  8. No
  9. Yes
  10. the reset button
  11. False
  12. True
  13. True
  14. the pins
  15. microcontroller
  16. a washing machine
  17. restarts the program
  18. USB or a 9 V battery
  19. True
  20. Yes
  21. a computer on one chip
  22. Yes
  23. False
  24. True
  25. a hand pump
  26. connect sensors and LEDs
  27. brings power and code
  28. No
  29. microcontroller
  30. False
  31. the power LED
  32. flash memory
  33. False
  34. runs the program
  35. True
  36. a digital alarm clock
  37. a wind-up toy
  38. a toy robot
  39. microcontroller
  40. No

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