Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 708 · 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 part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins
2. 2.True or false: a laptop uses very little power. (a) False (b) True
3. 3.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
4. 4.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
5. 5.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the main chip (d) the voltage regulator
6. 6.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
8. 8.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
9. 9.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
10. 10.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a plain wall switch (d) a TV remote
11. 11.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
12. 12.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) restarts the program (d) brings power and code
13. 13.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
15. 15.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
16. 16.True or false: a microcontroller has no screen of its own. (a) True (b) False
17. 17.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a digital alarm clock (d) a candle
18. 18.Which of these has no microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a digital alarm clock (d) a microwave oven
19. 19.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
20. 20.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
21. 21.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a candle (d) a washing machine
22. 22.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
23. 23.True or false: a laptop needs much more power. (a) True (b) False
24. 24.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
25. 25.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
26. 26.Which job is done by the reset button? (a) restarts the program (b) runs the program (c) keeps the voltage steady (d) brings power and code
27. 27.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
28. 28.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
29. 29.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
30. 30.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
31. 31.Which of these has no microcontroller inside? (a) a digital thermometer (b) a TV remote (c) a spinning top (d) a digital alarm clock
32. 32.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
33. 33.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the pins (c) the reset button (d) the USB port
34. 34.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a microwave oven
35. 35.True or false: a TV remote has no microcontroller inside. (a) True (b) False
36. 36.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
38. 38.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the USB port (c) the reset button (d) the power LED
39. 39.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
40. 40.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids