Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 744 · 40 questions

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.

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

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