Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 351 · 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.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
2. 2.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
3. 3.Which job is done by the power LED? (a) shows the board is on (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
4. 4.True or false: a laptop has a built-in keyboard. (a) False (b) True
5. 5.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
6. 6.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
7. 7.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
8. 8.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
9. 9.True or false: a candle usually has a microcontroller inside. (a) False (b) True
10. 10.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
11. 11.Which of these has no microcontroller inside? (a) a TV remote (b) a hand pump (c) a toy robot (d) a digital alarm clock
12. 12.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
13. 13.Which job is done by the voltage regulator? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
14. 14.Which job is done by the pins? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
15. 15.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
16. 16.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the reset button (c) the USB port (d) the pins
17. 17.True or false: a TV remote has no microcontroller inside. (a) True (b) False
18. 18.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a plain wall switch (d) a toy robot
19. 19.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a spinning top (d) a washing machine
20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
21. 21.True or false: a laptop runs one small program. (a) False (b) True
22. 22.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a plain wall switch (d) a digital thermometer
23. 23.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
24. 24.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
27. 27.True or false: a smart watch has no microcontroller inside. (a) True (b) False
28. 28.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
29. 29.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
30. 30.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins
31. 31.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
32. 32.True or false: a laptop runs many apps at once. (a) True (b) False
33. 33.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
34. 34.True or false: a washing machine has no microcontroller inside. (a) True (b) False
35. 35.True or false: a microcontroller uses very little power. (a) True (b) False
36. 36.Which of these usually has a microcontroller inside? (a) a TV remote (b) a candle (c) a spinning top (d) a bicycle bell
37. 37.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) runs the program
38. 38.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
39. 39.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
40. 40.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No

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