← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 506 · 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.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
  2. 2.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the pins (d) the voltage regulator
  3. 3.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a bicycle bell (d) a washing machine
  4. 4.Which job is done by the voltage regulator? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) connect sensors and LEDs
  5. 5.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
  6. 6.True or false: a laptop uses very little power. (a) True (b) False
  7. 7.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
  8. 8.True or false: a microcontroller uses very little power. (a) False (b) True
  9. 9.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  11. 11.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) restarts the program (d) shows the board is on
  12. 12.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  14. 14.True or false: a microcontroller needs much more power. (a) False (b) True
  15. 15.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  17. 17.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  18. 18.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the main chip (c) the reset button (d) the power LED
  19. 19.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
  20. 20.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  21. 21.🤖 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
  22. 22.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  24. 24.Which job is done by the main chip? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) runs the program
  25. 25.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a hand pump (d) a digital thermometer
  27. 27.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the pins (c) the voltage regulator (d) the main chip
  28. 28.Which of these usually has a microcontroller inside? (a) a spinning top (b) a smart watch (c) a plain wall switch (d) a candle
  29. 29.True or false: a laptop needs much more power. (a) False (b) True
  30. 30.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  32. 32.True or false: a microcontroller has no screen of its own. (a) True (b) False
  33. 33.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  34. 34.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a digital thermometer (d) a candle
  35. 35.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  37. 37.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  38. 38.True or false: a microcontroller runs one small program. (a) True (b) False
  39. 39.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) shows the board is on
  40. 40.True or false: a microcontroller has no screen of its own. (a) False (b) True

Answer key

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

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