Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 583 · 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 of these usually has a microcontroller inside? (a) a hand pump (b) a smart watch (c) a wind-up toy (d) a spinning top
2. 2.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
3. 3.True or false: a laptop has a built-in keyboard. (a) False (b) True
4. 4.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
5. 5.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a wall socket directly (d) a 230 V cable
6. 6.True or false: a microcontroller runs many apps at once. (a) True (b) False
7. 7.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
8. 8.Which of these usually has a microcontroller inside? (a) a TV remote (b) a spinning top (c) a plain wall switch (d) a bicycle bell
9. 9.Which job is done by the pins? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) keeps the voltage steady
10. 10.🤖 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
11. 11.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
12. 12.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital thermometer (c) a wind-up toy (d) a hand pump
13. 13.True or false: a laptop uses very little power. (a) True (b) False
14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the power LED (d) the main chip
15. 15.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
16. 16.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
17. 17.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a plain wall switch (d) a candle
18. 18.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
19. 19.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
20. 20.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
21. 21.Which of these has no microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a TV remote (d) a digital thermometer
22. 22.True or false: a washing machine has no microcontroller inside. (a) True (b) False
23. 23.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a digital thermometer (d) a hand pump
24. 24.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
25. 25.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
26. 26.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
27. 27.True or false: a hand pump has no microcontroller inside. (a) True (b) False
28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the power LED (d) the pins
29. 29.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the voltage regulator (c) the main chip (d) the power LED
30. 30.🤖 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
31. 31.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the pins (c) the USB port (d) the main chip
32. 32.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a digital alarm clock (d) a candle
33. 33.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) runs the program (d) keeps the voltage steady
34. 34.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
35. 35.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
37. 37.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
38. 38.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
39. 39.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
40. 40.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False

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