Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 183 · 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.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
2. 2.True or false: a microcontroller has no screen of its own. (a) False (b) True
3. 3.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
4. 4.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
5. 5.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
6. 6.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
7. 7.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a bicycle bell (d) a microwave oven
8. 8.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a digital thermometer (d) a plain wall switch
9. 9.True or false: a candle has no microcontroller inside. (a) True (b) False
10. 10.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
11. 11.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
12. 12.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the pins (c) the voltage regulator (d) the USB port
13. 13.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
14. 14.True or false: a laptop has no screen of its own. (a) True (b) False
15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
16. 16.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) restarts the program
17. 17.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
18. 18.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a smart watch (d) a TV remote
19. 19.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
20. 20.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
21. 21.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
22. 22.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
23. 23.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the USB port (c) the reset button (d) the power LED
24. 24.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
25. 25.True or false: a laptop has a built-in keyboard. (a) False (b) True
26. 26.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a candle (d) a TV remote
27. 27.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a digital alarm clock (d) a hand pump
28. 28.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
29. 29.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
30. 30.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a candle (d) a digital thermometer
31. 31.True or false: a laptop runs one small program. (a) False (b) True
32. 32.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
33. 33.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
34. 34.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
35. 35.Which job is done by the reset button? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) restarts the program
36. 36.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the pins (d) the voltage regulator
37. 37.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
38. 38.Which of these usually has a microcontroller inside? (a) a smart watch (b) a plain wall switch (c) a spinning top (d) a candle
39. 39.True or false: a microcontroller needs much more power. (a) False (b) True
40. 40.True or false: a candle usually has a microcontroller inside. (a) True (b) False

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