← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 631 · 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 runs one small program? (a) microcontroller (b) laptop
  2. 2.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  3. 3.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a plain wall switch (d) a digital thermometer
  4. 4.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  5. 5.🤖 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
  6. 6.True or false: a microcontroller uses very little power. (a) False (b) True
  7. 7.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  8. 8.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  9. 9.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  10. 10.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a plain wall switch (d) a washing machine
  13. 13.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
  14. 14.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  15. 15.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the power LED (d) the reset button
  17. 17.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  18. 18.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  21. 21.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the main chip (c) the power LED (d) the pins
  22. 22.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  23. 23.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  24. 24.True or false: a laptop uses very little power. (a) False (b) True
  25. 25.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
  26. 26.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  27. 27.True or false: a laptop runs one small program. (a) True (b) False
  28. 28.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  30. 30.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  31. 31.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a candle (d) a digital alarm clock
  32. 32.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  33. 33.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  36. 36.Which of these has no microcontroller inside? (a) a washing machine (b) a hand pump (c) a digital thermometer (d) a microwave oven
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a laptop has no screen of its own. (a) True (b) False
  39. 39.🤖 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
  40. 40.Which job is done by the pins? (a) runs the program (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on

Answer key

  1. microcontroller
  2. True
  3. a digital thermometer
  4. False
  5. flash memory
  6. True
  7. No
  8. runs the program
  9. No
  10. True
  11. Yes
  12. a washing machine
  13. shows the board is on
  14. microcontroller
  15. Yes
  16. the power LED
  17. True
  18. False
  19. Yes
  20. USB or a 9 V battery
  21. the pins
  22. False
  23. True
  24. False
  25. uploaded over USB
  26. False
  27. False
  28. Yes
  29. No
  30. No
  31. a candle
  32. Yes
  33. No
  34. laptop
  35. laptop
  36. a hand pump
  37. Yes
  38. False
  39. a computer on one chip
  40. connect sensors and LEDs

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