Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 279 · 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.Which job is done by the main chip? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) brings power and code
2. 2.True or false: a microcontroller needs much more power. (a) True (b) False
3. 3.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
4. 4.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
5. 5.True or false: a hand pump has no microcontroller inside. (a) True (b) False
6. 6.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
7. 7.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the pins (c) the reset button (d) the USB port
8. 8.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
9. 9.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
10. 10.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a toy robot (d) a bicycle bell
11. 11.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) restarts the program
12. 12.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
13. 13.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
14. 14.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the main chip (d) the power LED
15. 15.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
16. 16.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
17. 17.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
18. 18.True or false: a laptop uses very little power. (a) True (b) False
19. 19.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
20. 20.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
21. 21.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
22. 22.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a smart watch (d) a microwave oven
23. 23.Which job is done by the USB port? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
24. 24.Which of these has no microcontroller inside? (a) a toy robot (b) a digital thermometer (c) a smart watch (d) a hand pump
25. 25.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
26. 26.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
27. 27.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
28. 28.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
29. 29.True or false: a laptop has no screen of its own. (a) False (b) True
30. 30.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a bicycle bell (d) a TV remote
31. 31.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
32. 32.True or false: a microcontroller runs one small program. (a) True (b) False
33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
34. 34.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
35. 35.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
36. 36.True or false: a laptop has a built-in keyboard. (a) True (b) False
37. 37.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
38. 38.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a plain wall switch (d) a digital thermometer
39. 39.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
40. 40.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a plain wall switch (d) a washing machine

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