Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 370 · 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.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
2. 2.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
3. 3.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the main chip (d) the reset button
4. 4.True or false: a laptop uses very little power. (a) False (b) True
5. 5.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a bicycle bell (d) a spinning top
6. 6.True or false: a laptop runs one small program. (a) False (b) True
7. 7.Which job is done by the main chip? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) brings power and code
8. 8.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a spinning top (d) a microwave oven
9. 9.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
10. 10.🤖 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
11. 11.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a hand pump (c) a candle (d) a spinning top
12. 12.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
13. 13.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the reset button (d) the power LED
14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the voltage regulator (c) the power LED (d) the pins
15. 15.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
16. 16.Which job is done by the voltage regulator? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) shows the board is on
17. 17.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the voltage regulator (d) the USB port
18. 18.🤖 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
19. 19.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
20. 20.True or false: a laptop has no screen of its own. (a) False (b) True
21. 21.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
22. 22.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a microwave oven (d) a toy robot
23. 23.🤖 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
24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the pins (c) the reset button (d) the voltage regulator
25. 25.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
26. 26.True or false: a microcontroller runs many apps at once. (a) True (b) False
27. 27.Which of these has no microcontroller inside? (a) a microwave oven (b) a TV remote (c) a digital thermometer (d) a candle
28. 28.Which job is done by the pins? (a) restarts the program (b) runs the program (c) brings power and code (d) connect sensors and LEDs
29. 29.Which of these has no microcontroller inside? (a) a hand pump (b) a TV remote (c) a washing machine (d) a microwave oven
30. 30.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a smart watch (c) a spinning top (d) a bicycle bell
31. 31.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
32. 32.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
33. 33.🤖 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
34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
35. 35.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
36. 36.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
37. 37.True or false: a laptop runs many apps at once. (a) False (b) True
38. 38.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
39. 39.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a toy robot (d) a wind-up toy
40. 40.Which job is done by the reset button? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) runs the program

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