Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 312 · 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.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
2. 2.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the voltage regulator (c) the power LED (d) the reset button
3. 3.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
4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the reset button (d) the pins
5. 5.True or false: a laptop runs one small program. (a) False (b) True
6. 6.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
7. 7.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) uploaded over USB (d) drawn with a pen
8. 8.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
9. 9.True or false: a candle has no microcontroller inside. (a) True (b) False
10. 10.Which of these has no microcontroller inside? (a) a smart watch (b) a TV remote (c) a digital alarm clock (d) a spinning top
11. 11.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the USB port (c) the pins (d) the voltage regulator
12. 12.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the voltage regulator (c) the reset button (d) the power LED
13. 13.True or false: a microcontroller runs one small program. (a) False (b) True
14. 14.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
15. 15.True or false: a microcontroller runs many apps at once. (a) False (b) True
16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
17. 17.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a bicycle bell (d) a spinning top
18. 18.True or false: a microcontroller has no screen of its own. (a) True (b) False
19. 19.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
20. 20.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the main chip (d) the USB port
21. 21.True or false: a laptop has no screen of its own. (a) False (b) True
22. 22.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a microwave oven (d) a smart watch
23. 23.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a wind-up toy (d) a washing machine
24. 24.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
25. 25.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
26. 26.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) runs the program (d) connect sensors and LEDs
27. 27.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) bare mains wires (d) a 230 V cable
28. 28.🤖 Does a plain wall switch 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 washing machine usually have a microcontroller inside? (a) Yes (b) No
31. 31.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a smart watch (d) a spinning top
32. 32.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
33. 33.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
34. 34.Which of these usually has a microcontroller inside? (a) a candle (b) a toy robot (c) a bicycle bell (d) a spinning top
35. 35.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a candle (d) a digital thermometer
36. 36.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the USB port (d) the main chip
37. 37.True or false: a TV remote has no microcontroller inside. (a) True (b) False
38. 38.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a hand pump (d) a TV remote
39. 39.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
40. 40.True or false: a laptop uses very little power. (a) False (b) True

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