Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 136 · 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) keeps the voltage steady (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
2. 2.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the reset button (d) the pins
3. 3.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a plain wall switch (d) a digital thermometer
4. 4.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
5. 5.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
6. 6.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) typed on the chip (d) drawn with a pen
7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a digital alarm clock (d) a spinning top
8. 8.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) connect sensors and LEDs
9. 9.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
10. 10.Which of these has no microcontroller inside? (a) a hand pump (b) a digital alarm clock (c) a microwave oven (d) a washing machine
11. 11.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
13. 13.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
14. 14.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
15. 15.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
16. 16.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
17. 17.True or false: a microcontroller runs many apps at once. (a) False (b) True
18. 18.Which of these has no microcontroller inside? (a) a washing machine (b) a spinning top (c) a microwave oven (d) a smart watch
19. 19.True or false: a candle has no microcontroller inside. (a) False (b) True
20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
21. 21.🤖 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
22. 22.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
23. 23.True or false: a laptop has no screen of its own. (a) False (b) True
24. 24.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a plain wall switch (d) a smart watch
25. 25.True or false: a laptop has a built-in keyboard. (a) False (b) True
26. 26.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
27. 27.True or false: a microcontroller has no screen of its own. (a) True (b) False
28. 28.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
29. 29.Which of these usually has a microcontroller inside? (a) a TV remote (b) a candle (c) a plain wall switch (d) a wind-up toy
30. 30.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
31. 31.True or false: a microcontroller needs much more power. (a) False (b) True
32. 32.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a bicycle bell (d) a microwave oven
33. 33.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
35. 35.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
36. 36.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
37. 37.🤖 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
38. 38.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
39. 39.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the voltage regulator (d) the USB port
40. 40.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes

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