← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 233 · 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.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  2. 2.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  3. 3.True or false: a microcontroller runs one small program. (a) True (b) False
  4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the main chip (c) the USB port (d) the power LED
  5. 5.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  6. 6.True or false: a microcontroller uses very little power. (a) False (b) True
  7. 7.True or false: a laptop needs much more power. (a) False (b) True
  8. 8.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  9. 9.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the USB port (d) the voltage regulator
  11. 11.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  12. 12.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a candle (d) a smart watch
  13. 13.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a bicycle bell (d) a digital alarm clock
  14. 14.Which job is done by the reset button? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) restarts the program
  15. 15.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a digital thermometer (d) a plain wall switch
  16. 16.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the reset button (c) the pins (d) the power LED
  18. 18.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
  20. 20.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
  21. 21.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  22. 22.True or false: a microcontroller runs many apps at once. (a) True (b) False
  23. 23.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
  24. 24.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the pins (d) the voltage regulator
  25. 25.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  26. 26.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  27. 27.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  28. 28.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
  29. 29.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a toy robot (d) a bicycle bell
  30. 30.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  31. 31.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  32. 32.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  33. 33.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  34. 34.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  35. 35.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the pins (d) the reset button
  36. 36.Which job is done by the pins? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) brings power and code
  37. 37.Which job is done by the main chip? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) shows the board is on
  38. 38.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  39. 39.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  40. 40.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. laptop
  2. No
  3. True
  4. the USB port
  5. No
  6. True
  7. True
  8. microcontroller
  9. Yes
  10. the power LED
  11. Yes
  12. a candle
  13. a digital alarm clock
  14. restarts the program
  15. a digital thermometer
  16. No
  17. the pins
  18. Yes
  19. USB or a 9 V battery
  20. it starts again
  21. flash memory
  22. False
  23. True
  24. the main chip
  25. False
  26. False
  27. False
  28. brings power and code
  29. a bicycle bell
  30. True
  31. False
  32. a computer on one chip
  33. False
  34. False
  35. the voltage regulator
  36. connect sensors and LEDs
  37. runs the program
  38. microcontroller
  39. laptop
  40. Yes

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