← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 540 · 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.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) the board breaks (d) it stops forever
  2. 2.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  3. 3.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  4. 4.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a candle (d) a wind-up toy
  5. 5.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  6. 6.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  7. 7.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  8. 8.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  10. 10.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a candle (d) a smart watch
  11. 11.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  12. 12.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the power LED (c) the pins (d) the USB port
  13. 13.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  14. 14.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  15. 15.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  16. 16.🤖 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
  17. 17.True or false: a laptop needs much more power. (a) False (b) True
  18. 18.Which job is done by the USB port? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
  19. 19.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  20. 20.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
  21. 21.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  22. 22.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the pins (d) the reset button
  24. 24.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a washing machine (d) a spinning top
  25. 25.True or false: a microcontroller runs one small program. (a) True (b) False
  26. 26.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  27. 27.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a TV remote (d) a wind-up toy
  28. 28.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  29. 29.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  30. 30.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the power LED (c) the reset button (d) the pins
  31. 31.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  33. 33.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
  34. 34.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the USB port (d) the reset button
  35. 35.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the pins (d) the voltage regulator
  36. 36.Which of these usually has a microcontroller inside? (a) a spinning top (b) a toy robot (c) a candle (d) a wind-up toy
  37. 37.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  38. 38.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a TV remote (d) a hand pump
  39. 39.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  40. 40.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False

Answer key

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

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