Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 500 · 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 a built-in keyboard? (a) microcontroller (b) laptop
2. 2.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
3. 3.True or false: a laptop runs one small program. (a) True (b) False
4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the voltage regulator (c) the power LED (d) the pins
6. 6.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the main chip (c) the voltage regulator (d) the USB port
8. 8.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a digital thermometer (d) a bicycle bell
9. 9.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
10. 10.Which job is done by the pins? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
11. 11.🤖 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
12. 12.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
13. 13.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
14. 14.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
15. 15.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
16. 16.True or false: a hand pump has no microcontroller inside. (a) False (b) True
17. 17.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the resistor (d) the power LED
18. 18.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
19. 19.Which job is done by the reset button? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) restarts the program
20. 20.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the reset button (c) the pins (d) the power LED
21. 21.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
22. 22.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a hand pump (d) a toy robot
23. 23.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a kind of bulb (d) a big desktop computer
24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the reset button (d) the pins
25. 25.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
26. 26.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a toy robot (d) a wind-up toy
27. 27.True or false: a laptop has a built-in keyboard. (a) False (b) True
28. 28.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
29. 29.True or false: a microcontroller needs much more power. (a) False (b) True
30. 30.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a digital thermometer (d) a wind-up toy
31. 31.Which job is done by the power LED? (a) connect sensors and LEDs (b) runs the program (c) shows the board is on (d) brings power and code
32. 32.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
33. 33.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
34. 34.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a hand pump (d) a wind-up toy
35. 35.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
36. 36.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
37. 37.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the USB port (d) the pins
38. 38.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
39. 39.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
40. 40.True or false: a microcontroller runs one small program. (a) False (b) True

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