Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, various sensors, LEDs, resistors, and a buzzer. The circuit is designed to interface with multiple sensors and output devices, providing a comprehensive setup for monitoring and signaling.

Component List

Resistor

• Description: A resistor with a resistance of 200 Ohms.
• Pins: pin1, pin2

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

LED: Two Pin (red)

• Description: A red LED with two pins.
• Pins: cathode, anode

LED: Two Pin (green)

• Description: A green LED with two pins.
• Pins: cathode, anode

Buzzer

• Description: A buzzer with two pins.
• Pins: PIN, GND

MQ-2

• Description: A gas sensor with four pins.
• Pins: GND, VCC, ANALOG, Digital

KY-026 Flame Sensor

• Description: A flame sensor with four pins.
• Pins: AO, GND, VCC, DO

DHT11

• Description: A temperature and humidity sensor with three pins.
• Pins: DATA, GND, VCC

Wiring Details

Resistor

• Pin1: Connected to the anode of the red LED.
• Pin2: Connected to pin D12 of the Arduino UNO.

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Resistor

• Pin1: Connected to the anode of the green LED.
• Pin2: Connected to pin D11 of the Arduino UNO.

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Resistor

• Pin1: Connected to pin D10 of the Arduino UNO.
• Pin2: Connected to the PIN of the buzzer.

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Arduino UNO

• GND: Connected to the cathode of the red LED, the cathode of the green LED, the GND of the DHT11, and the GND of the buzzer.
• D10: Connected to pin1 of a resistor.
• D11: Connected to pin2 of a resistor.
• D12: Connected to pin2 of a resistor.
• IOREF: Connected to the VCC of the MQ-2.
• 3.3V: Connected to the VCC of the DHT11.
• 5V: Connected to the VCC of the KY-026 Flame Sensor.
• A0: Connected to the AO of the KY-026 Flame Sensor.
• A5: Connected to the ANALOG of the MQ-2.
• D8: Connected to the DATA of the DHT11.

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LED: Two Pin (red)

• Cathode: Connected to the GND of the Arduino UNO.
• Anode: Connected to pin1 of a resistor.

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LED: Two Pin (green)

• Cathode: Connected to the GND of the Arduino UNO.
• Anode: Connected to pin1 of a resistor.

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Buzzer

• PIN: Connected to pin2 of a resistor.
• GND: Connected to the GND of the Arduino UNO.

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MQ-2

• GND: Connected to the GND of the Arduino UNO.
• VCC: Connected to the IOREF of the Arduino UNO.
• ANALOG: Connected to A5 of the Arduino UNO.
• Digital: Not connected.

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KY-026 Flame Sensor

• AO: Connected to A0 of the Arduino UNO.
• GND: Connected to the GND of the Arduino UNO.
• VCC: Connected to the 5V of the Arduino UNO.
• DO: Not connected.

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DHT11

• DATA: Connected to D8 of the Arduino UNO.
• GND: Connected to the GND of the Arduino UNO.
• VCC: Connected to the 3.3V of the Arduino UNO.

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Code Documentation

Arduino UNO Code

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

This code is a basic template for the Arduino UNO. The setup() function is used to initialize any settings or configurations, and the loop() function contains the main code that runs repeatedly.

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This concludes the documentation for the circuit. If you have any questions or need further details, please refer to the specific sections above.