Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed using an Arduino Mega 2560 microcontroller. The circuit includes various sensors, LEDs, and resistors, all interconnected to perform specific functions. The document includes a component list, wiring details, and the embedded code used in the microcontroller.

Component List

Arduino Mega 2560

• Description: A microcontroller board based on the ATmega2560.
• Pins: IOREF, RESET, 3V3, 5V, GND, VIN, A0-A15, D21/SCL, D20/SDA, D19/RX1, D18/TX1, D17 PWM/RX2, D16 PWM/TX2, D15/RX3, D14/TX3, D0 RX0, D1 TX0, D2 PWM-D13 PWM, AREF, SDA, SCL, D22-D53.

7.4v Battery

• Description: A 7.4V power source.
• Pins: +, -

DHT 11

• Description: A digital temperature and humidity sensor.
• Pins: VCC, GND, DATA

Rain Sensor

• Description: A sensor to detect rain.
• Pins: AO, DO, GRD, VCC

AITrip ADXL335 GY-61

• Description: A 3-axis accelerometer.
• Pins: GND, Z-Out, Y-Out, X-Out, VCC

IR Sensor

• Description: An infrared sensor for object detection.
• Pins: out, gnd, vcc

HC-SR04 Ultrasonic Distance Sensor

• Description: An ultrasonic sensor for measuring distance.
• Pins: VCC, TRIG, ECHO, GND

MQ-4

• Description: A gas sensor for methane detection.
• Pins: A0, D0, GND, VCC

LED: Two Pin (Red)

• Description: A red LED.
• Pins: cathode, anode

LED: Two Pin (Green)

• Description: A green LED.
• Pins: cathode, anode

LED: Two Pin (Orange)

• Description: An orange LED.
• Pins: cathode, anode

Resistor

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

Wiring Details

Arduino Mega 2560

• 5V: Connected to VCC of DHT 11, IR Sensor, MQ-4, Rain Sensor.
• GND: Connected to GND of DHT 11, HC-SR04, IR Sensor, MQ-4, Rain Sensor, AITrip ADXL335, and cathode of all LEDs.
• A0: Connected to A0 of MQ-4.
• A1: Connected to AO of Rain Sensor.
• A2: Connected to X-Out of AITrip ADXL335.
• A3: Connected to Y-Out of AITrip ADXL335.
• A4: Connected to Z-Out of AITrip ADXL335.
• D2 PWM: Connected to DATA of DHT 11.
• D4 PWM: Connected to pin2 of a Resistor.
• D5 PWM: Connected to pin2 of a Resistor.
• D7 PWM: Connected to out of IR Sensor.
• D8 PWM: Connected to pin2 of a Resistor.
• D10 PWM: Connected to pin2 of a Resistor.
• D11 PWM: Connected to ECHO of HC-SR04.
• D12 PWM: Connected to TRIG of HC-SR04.
• D13 PWM: Connected to pin2 of a Resistor.

DHT 11

• VCC: Connected to 5V of Arduino Mega 2560.
• GND: Connected to GND of Arduino Mega 2560.
• DATA: Connected to D2 PWM of Arduino Mega 2560.

Rain Sensor

• VCC: Connected to 5V of Arduino Mega 2560.
• GRD: Connected to GND of Arduino Mega 2560.
• AO: Connected to A1 of Arduino Mega 2560.

AITrip ADXL335 GY-61

• VCC: Connected to 5V of Arduino Mega 2560.
• GND: Connected to GND of Arduino Mega 2560.
• X-Out: Connected to A2 of Arduino Mega 2560.
• Y-Out: Connected to A3 of Arduino Mega 2560.
• Z-Out: Connected to A4 of Arduino Mega 2560.

IR Sensor

• vcc: Connected to 5V of Arduino Mega 2560.
• gnd: Connected to GND of Arduino Mega 2560.
• out: Connected to D7 PWM of Arduino Mega 2560.

HC-SR04 Ultrasonic Distance Sensor

• VCC: Connected to 5V of Arduino Mega 2560.
• GND: Connected to GND of Arduino Mega 2560.
• ECHO: Connected to D11 PWM of Arduino Mega 2560.
• TRIG: Connected to D12 PWM of Arduino Mega 2560.

MQ-4

• VCC: Connected to 5V of Arduino Mega 2560.
• GND: Connected to GND of Arduino Mega 2560.
• A0: Connected to A0 of Arduino Mega 2560.

LED: Two Pin (Red)

• cathode: Connected to GND of Arduino Mega 2560.
• anode: Connected to pin1 of a Resistor.

LED: Two Pin (Green)

• cathode: Connected to GND of Arduino Mega 2560.
• anode: Connected to pin1 of a Resistor.

LED: Two Pin (Orange)

• cathode: Connected to GND of Arduino Mega 2560.
• anode: Connected to pin1 of a Resistor.

Resistor

• pin1: Connected to anode of an LED.
• pin2: Connected to D4 PWM, D5 PWM, D8 PWM, D10 PWM, D13 PWM of Arduino Mega 2560.

Code

sketch.ino

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

}

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

}

documentation.txt