Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 111 · 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.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
2. 2.Which of these has no microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a microwave oven (d) a digital alarm clock
3. 3.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a hand pump (d) a wind-up toy
4. 4.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
5. 5.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
6. 6.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
7. 7.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
8. 8.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
9. 9.True or false: a laptop needs much more power. (a) True (b) False
10. 10.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
11. 11.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a microwave oven (d) a candle
12. 12.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
13. 13.True or false: a TV remote has no microcontroller inside. (a) False (b) True
14. 14.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) brings power and code (d) runs the program
15. 15.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
16. 16.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the power LED (d) the resistor
17. 17.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
18. 18.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
19. 19.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
20. 20.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
21. 21.True or false: a candle usually has a microcontroller inside. (a) False (b) True
22. 22.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
23. 23.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
24. 24.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
25. 25.Which of these has no microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a washing machine (d) a TV remote
26. 26.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
27. 27.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
28. 28.True or false: a washing machine has no microcontroller inside. (a) True (b) False
29. 29.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
30. 30.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
31. 31.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
32. 32.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
34. 34.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the USB port (d) the pins
35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
36. 36.True or false: a laptop has no screen of its own. (a) False (b) True
37. 37.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
38. 38.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
39. 39.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the main chip (d) the USB port
40. 40.Which job is done by the power LED? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) shows the board is on

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