Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 603 · 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 power LED? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) brings power and code
2. 2.Which job is done by the pins? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
3. 3.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) typed on the chip (d) sent by sound
4. 4.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
5. 5.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
6. 6.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
7. 7.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
8. 8.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
10. 10.Which of these usually has a microcontroller inside? (a) a TV remote (b) a spinning top (c) a bicycle bell (d) a hand pump
11. 11.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) brings power and code
12. 12.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
13. 13.Which of these has no microcontroller inside? (a) a candle (b) a digital thermometer (c) a TV remote (d) a washing machine
14. 14.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the reset button (c) the USB port (d) the power LED
15. 15.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the power LED (c) the pins (d) the USB port
17. 17.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
18. 18.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
19. 19.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
20. 20.True or false: a microcontroller needs much more power. (a) True (b) False
21. 21.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a hand pump (d) a microwave oven
22. 22.True or false: a microcontroller uses very little power. (a) False (b) True
23. 23.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
24. 24.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a candle (d) a washing machine
25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
26. 26.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
27. 27.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
28. 28.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
29. 29.True or false: a laptop runs one small program. (a) True (b) False
30. 30.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the pins (c) the power LED (d) the voltage regulator
31. 31.True or false: a spinning top has no microcontroller inside. (a) True (b) False
32. 32.True or false: a microcontroller runs one small program. (a) False (b) True
33. 33.Which of these usually has a microcontroller inside? (a) a smart watch (b) a spinning top (c) a hand pump (d) a plain wall switch
34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
35. 35.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a bicycle bell (d) a wind-up toy
36. 36.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
37. 37.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
38. 38.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a toy robot (d) a candle
39. 39.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
40. 40.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs

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