← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 340 · 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.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  2. 2.True or false: a microcontroller runs many apps at once. (a) False (b) True
  3. 3.Which of these has no microcontroller inside? (a) a microwave oven (b) a candle (c) a digital alarm clock (d) a washing machine
  4. 4.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  5. 5.True or false: a microcontroller has no screen of its own. (a) False (b) True
  6. 6.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) brings power and code
  7. 7.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
  9. 9.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  11. 11.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  12. 12.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  13. 13.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  14. 14.True or false: a candle has no microcontroller inside. (a) True (b) False
  15. 15.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  16. 16.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  17. 17.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a plain wall switch (d) a wind-up toy
  18. 18.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  19. 19.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  20. 20.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  21. 21.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the power LED (d) the main chip
  22. 22.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the reset button (c) the voltage regulator (d) the power LED
  23. 23.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a candle (d) a smart watch
  24. 24.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it starts again (d) it stops forever
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the pins (d) the voltage regulator
  26. 26.Which of these has no microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a smart watch (d) a TV remote
  27. 27.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  30. 30.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  32. 32.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  33. 33.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  34. 34.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  35. 35.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 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
  37. 37.True or false: a laptop runs many apps at once. (a) False (b) True
  38. 38.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) the power LED (d) flash memory
  39. 39.True or false: a microcontroller uses very little power. (a) False (b) True
  40. 40.True or false: a microcontroller runs one small program. (a) False (b) True

Answer key

  1. True
  2. False
  3. a candle
  4. Yes
  5. True
  6. connect sensors and LEDs
  7. microcontroller
  8. USB or a 9 V battery
  9. Yes
  10. brings power and code
  11. False
  12. False
  13. microcontroller
  14. True
  15. laptop
  16. shows the board is on
  17. a toy robot
  18. True
  19. microcontroller
  20. No
  21. the voltage regulator
  22. the reset button
  23. a smart watch
  24. it starts again
  25. the USB port
  26. a wind-up toy
  27. No
  28. No
  29. laptop
  30. No
  31. False
  32. uploaded over USB
  33. True
  34. False
  35. No
  36. a computer on one chip
  37. True
  38. flash memory
  39. True
  40. True

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