Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 468 · 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 runs many apps at once? (a) laptop (b) microcontroller
2. 2.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the main chip (c) the reset button (d) the pins
3. 3.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
4. 4.Which job is done by the reset button? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
5. 5.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the main chip (d) the reset button
6. 6.True or false: a laptop uses very little power. (a) False (b) True
7. 7.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
8. 8.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
9. 9.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a digital thermometer (d) a bicycle bell
10. 10.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a washing machine (d) a wind-up toy
11. 11.True or false: a microcontroller needs much more power. (a) True (b) False
12. 12.🤖 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
13. 13.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
14. 14.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the voltage regulator (d) the main chip
16. 16.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) runs the program
17. 17.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
18. 18.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
19. 19.Which of these has no microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a microwave oven (d) a TV remote
20. 20.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
21. 21.True or false: a candle usually has a microcontroller inside. (a) True (b) False
22. 22.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
23. 23.True or false: a hand pump has no microcontroller inside. (a) True (b) False
24. 24.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) runs the program
25. 25.True or false: a microcontroller has no screen of its own. (a) False (b) True
26. 26.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
27. 27.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
28. 28.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
30. 30.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
31. 31.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
32. 32.Which job is done by the power LED? (a) restarts the program (b) shows the board is on (c) runs the program (d) connect sensors and LEDs
33. 33.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
34. 34.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
35. 35.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
36. 36.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a spinning top (c) a plain wall switch (d) a wind-up toy
37. 37.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
38. 38.True or false: a microcontroller runs one small program. (a) False (b) True
39. 39.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
40. 40.True or false: a laptop needs much more power. (a) True (b) False

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