Circuit Documentation

Summary

This circuit consists of an Arduino Nano microcontroller, a rain sensor, and a servo motor. The Arduino Nano reads data from the rain sensor and controls the servo motor based on the sensor's readings. The rain sensor detects the presence of rain and sends an analog signal to the Arduino Nano. The Arduino Nano processes this signal and, if necessary, sends a pulse signal to the servo motor to perform an action.

Component List

1. Arduino Nano

   • Description: A small, complete, and breadboard-friendly board based on the ATmega328P.
   • Pins: D1/TX, D0/RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11/MOSI, D12/MISO, VIN, 5V, A7, A6, A5, A4, A3, A2, A1, A0, AREF, 3V3, D13/SCK

2. RAIN SENSOR

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

3. Servo

   • Description: A small motor with a shaft that can be positioned to specific angular positions.
   • Pins: gnd, vcc, pulse

Wiring Details

Arduino Nano

• 5V is connected to:

  • RAIN SENSOR VCC
  • Servo vcc

• GND is connected to:

  • RAIN SENSOR GRD
  • Servo gnd

• D9 is connected to:

  • Servo pulse

• A7 is connected to:

  • RAIN SENSOR AO

RAIN SENSOR

• VCC is connected to:

  • Arduino Nano 5V
  • Servo vcc

• GRD is connected to:

  • Arduino Nano GND
  • Servo gnd

• AO is connected to:

  • Arduino Nano A7

Servo

• vcc is connected to:

  • Arduino Nano 5V
  • RAIN SENSOR VCC

• gnd is connected to:

  • Arduino Nano GND
  • RAIN SENSOR GRD

• pulse is connected to:

  • Arduino Nano D9

Code Documentation

Arduino Nano 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 Nano. The setup() function is where you initialize any settings or configurations, and the loop() function is where the main logic of your program runs repeatedly. In this circuit, you would typically add code to read the rain sensor's analog output and control the servo motor based on the sensor's readings.