← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 68 · 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.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
  2. 2.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  4. 4.True or false: a microcontroller runs many apps at once. (a) False (b) True
  5. 5.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a spinning top (d) a toy robot
  6. 6.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a microwave oven (d) a plain wall switch
  7. 7.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  8. 8.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  9. 9.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  11. 11.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  12. 12.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a plain wall switch (d) a spinning top
  13. 13.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  14. 14.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  16. 16.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a plain wall switch (d) a candle
  17. 17.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  18. 18.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  21. 21.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  22. 22.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) brings power and code
  23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
  24. 24.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the pins (d) the USB port
  25. 25.Which job is done by the pins? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) runs the program
  26. 26.True or false: a microcontroller has no screen of its own. (a) True (b) False
  27. 27.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the pins (c) the USB port (d) the reset button
  28. 28.True or false: a toy robot has no microcontroller inside. (a) True (b) False
  29. 29.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the power LED (d) the reset button
  30. 30.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  31. 31.True or false: a microcontroller needs much more power. (a) False (b) True
  32. 32.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  33. 33.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  35. 35.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the pins (c) the reset button (d) the main chip
  36. 36.True or false: a laptop needs much more power. (a) False (b) True
  37. 37.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the USB port (d) the main chip
  38. 38.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  39. 39.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  40. 40.Which job is done by the power LED? (a) keeps the voltage steady (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code

Answer key

  1. uploaded over USB
  2. keeps the voltage steady
  3. laptop
  4. False
  5. a spinning top
  6. a plain wall switch
  7. True
  8. flash memory
  9. Yes
  10. Yes
  11. False
  12. a digital thermometer
  13. False
  14. Yes
  15. microcontroller
  16. a microwave oven
  17. False
  18. Yes
  19. Yes
  20. microcontroller
  21. microcontroller
  22. brings power and code
  23. USB or a 9 V battery
  24. the pins
  25. connect sensors and LEDs
  26. True
  27. the main chip
  28. False
  29. the USB port
  30. Yes
  31. False
  32. False
  33. True
  34. True
  35. the reset button
  36. True
  37. the power LED
  38. True
  39. laptop
  40. shows the board is on

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