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Arduino Mega ADK Smart Home Automation System with LCD Display and Sensor Integration

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Circuit Documentation

Summary

This circuit is built around an Arduino Mega ADK (Rev3) microcontroller and includes various sensors, LEDs, a stepper motor, an LCD display, and other components. The circuit is designed to interface with multiple input and output devices, providing a comprehensive setup for a variety of applications.

Component List

  1. Arduino Mega ADK (Rev3)

    • Description: Microcontroller board based on the ATmega2560.
    • Pins: A8, A9, A10, A11, A12, A13, A14, A15, A0, A1, A2, A3, A4, A5, A6, A7, D21/SCL, D20/SDA, D19/RX1, D18/TX1, D17/RX2, D16/TX2, D15/RX3, D14/TX3, ICSP2 MISO, 5V, ICSP2 SCK, ICSP2 MOSI, RESET2, GND, AREF, D13 PWM, D12 PWM, D11 PWM, D10 PWM, D9 PWM, D8 PWM, RESET, 3V3, VIN, D0/RX0, D1/TX0, D2 PWM, D3 PWM, D4 PWM, D5 PWM, D6 PWM, D7 PWM, D22, D23, D24, D25, D26, D27, D28, D29, D30, D31, D32, D33, D34, D35, D36, D37, D38, D39, D40, D41, D42, D43, D44, D45, D46, D47, D48, D49, D50/MISO, D51/MOSI, D52/SCK, D53/SS, ICSP MISO, ICSP MOSI, ICSP SCK, RESET3, IOREF.

  2. LED: Two Pin (blue)

    • Description: Blue LED.
    • Pins: Cathode, Anode.

  3. LED: Two Pin (yellow)

    • Description: Yellow LED.
    • Pins: Cathode, Anode.

  4. LED: Two Pin (green)

    • Description: Green LED.
    • Pins: Cathode, Anode.

  5. LED: Two Pin (red)

    • Description: Red LED.
    • Pins: Cathode, Anode.

  6. Resistor (330 Ohms)

    • Description: Resistor with 330 Ohms resistance.
    • Pins: Pin1, Pin2.

  7. Resistor (200 Ohms)

    • Description: Resistor with 200 Ohms resistance.
    • Pins: Pin1, Pin2.

  8. Trimmer Potentiometer (10k Ohms)

    • Description: Adjustable resistor.
    • Pins: Leg1, Wiper, Leg2.

  9. LCD Display (16 pin)

    • Description: 16-pin LCD display.
    • Pins: VSS, VDD, VO, RS, R_W, E, DB0, DB1, DB2, DB3, DB4, DB5, DB6, DB7, A, K.

  10. Water Level Sensor

    • Description: Sensor to measure water level.
    • Pins: SIG, VCC, GND.

  11. DHT11 Humidity and Temperature Sensor

    • Description: Sensor to measure humidity and temperature.
    • Pins: VDD, DATA, NULL, GND.

  12. Adafruit DS1307 RTC Breakout

    • Description: Real-time clock module.
    • Pins: SQW, SCL, SDA, VCC, GND.

  13. Power mb V2

    • Description: Power management board.
    • Pins: -, +, DC-ln.

  14. 9V Battery

    • Description: 9V power source.
    • Pins: -, +.

  15. 28BYJ-48 Stepper Motor

    • Description: Stepper motor.
    • Pins: BLUE, PINK, YELLOW, ORANGE, RED.

  16. L293D

    • Description: Motor driver IC.
    • Pins: Enable 1,2, Input 1, Output 1, GND, Output 2, Input 2, VCC2, VCC1, Input 4, Output 4, Output 3, Input 3, Enable 3,4.

  17. DC Motor

    • Description: DC motor.
    • Pins: Pin 1, Pin 2.

  18. Pushbutton

    • Description: Pushbutton switch.
    • Pins: Pin 3 (out), Pin 4 (out), Pin 1 (in), Pin 2 (in).

  19. ULN2003A breakout board

    • Description: Darlington transistor array.
    • Pins: In 1, In 2, In 3, In 4, In 5, In 6, In 7, 0V, +5V, ON/OFF jumper switch, BLUE wire, PINK wire, YELLOW wire, ORANGE wire, RED wire.

Wiring Details

Arduino Mega ADK (Rev3)

LED: Two Pin (blue)

LED: Two Pin (yellow)

LED: Two Pin (green)

LED: Two Pin (red)

Resistor (330 Ohms)

Resistor (200 Ohms)