Circuit Documentation

Summary

This circuit is designed to interface with various sensors and actuators using an Arduino UNO microcontroller. It includes a rain sensor for detecting water presence, a DHT11 sensor for measuring temperature and humidity, and a servo motor (MG996R) for actuation. Additionally, the circuit incorporates two red LEDs, each with a corresponding resistor to limit the current. The Arduino UNO serves as the central processing unit, controlling the sensors and actuators based on the programmed logic.

Component List

RAIN SENSOR

• Pins: AO (Analog Output), DO (Digital Output), GRD (Ground), VCC (Power Supply)
• Description: Detects the presence of rain or water.

Arduino UNO

• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0-A5, SCL, SDA, AREF, D13-D0
• Description: Microcontroller board based on the ATmega328P, used for controlling the sensors and actuators in the circuit.

LED: Two Pin (red)

• Pins: cathode, anode
• Description: Emits red light when powered.

Resistor

• Pins: pin1, pin2
• Properties: Resistance: 200 Ohms
• Description: Limits the current flowing through the LEDs to prevent damage.

DHT11

• Pins: DATA, GND, VCC
• Description: Measures ambient temperature and humidity.

MG996R

• Pins: GND, VCC, SIG
• Description: Servo motor used for precise angular movement.

Wiring Details

RAIN SENSOR

• Digital Output (DO): Connected to Arduino UNO pin D2.
• Ground (GRD): Connected to common ground.
• Power Supply (VCC): Connected to Arduino UNO 5V output.

Arduino UNO

• Digital Pins (D12, D13): Connected to the anodes of two red LEDs.
• Ground (GND): Connected to common ground.
• 5V Output: Powers the RAIN SENSOR, DHT11, and MG996R.
• Digital Pin (D9): Sends control signal to MG996R servo motor.
• Digital Pin (D3): Receives data from DHT11 sensor.
• Digital Pin (D2): Receives digital output from RAIN SENSOR.

LED: Two Pin (red)

• Anode: Connected to Arduino UNO digital pins D12 and D13 (one LED per pin).
• Cathode: Connected to one end of a 200 Ohm resistor.

Resistor

• Pin1: Connected to common ground.
• Pin2: Connected to the cathode of a red LED.

DHT11

• Data (DATA): Connected to Arduino UNO pin D3.
• Ground (GND): Connected to common ground.
• Power Supply (VCC): Connected to Arduino UNO 5V output.

MG996R

• Signal (SIG): Connected to Arduino UNO pin D9.
• Ground (GND): Connected to common ground.
• Power Supply (VCC): Connected to Arduino UNO 5V output.

Documented Code

Arduino UNO Code (sketch.ino)

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

}

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

}

Additional Notes (documentation.txt)

No additional code documentation provided.