Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, three Servo Motor 9G units, a Rain Sensor, and a 18650 Li-ion Battery pack. The circuit is designed to control the servo motors based on input from the rain sensor, powered by the battery pack.

Component List

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

Servo Motor 9G

• Description: A small and lightweight servo motor.
• Pins: VCC 5V, PMW, GND

Rain Sensor

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

18650 Li-ion Battery x 2

• Description: A pair of 18650 Li-ion batteries.
• Pins: +, -

Wiring Details

Arduino UNO

• 5V: Connected to VCC 5V of all Servo Motor 9G units and VCC of the Rain Sensor.
• GND: Connected to GND of all Servo Motor 9G units, GRD of the Rain Sensor, and - of the 18650 Li-ion Battery pack.
• Vin: Connected to + of the 18650 Li-ion Battery pack.
• A0: Connected to DO of the Rain Sensor.
• D9: Connected to PMW of all Servo Motor 9G units.

Servo Motor 9G (Unit 1)

• VCC 5V: Connected to 5V of the Arduino UNO.
• PMW: Connected to D9 of the Arduino UNO.
• GND: Connected to GND of the Arduino UNO.

Servo Motor 9G (Unit 2)

• VCC 5V: Connected to 5V of the Arduino UNO.
• PMW: Connected to D9 of the Arduino UNO.
• GND: Connected to GND of the Arduino UNO.

Servo Motor 9G (Unit 3)

• VCC 5V: Connected to 5V of the Arduino UNO.
• PMW: Connected to D9 of the Arduino UNO.
• GND: Connected to GND of the Arduino UNO.

Rain Sensor

• VCC: Connected to 5V of the Arduino UNO.
• DO: Connected to A0 of the Arduino UNO.
• GRD: Connected to GND of the Arduino UNO.

18650 Li-ion Battery x 2

• +: Connected to Vin of the Arduino UNO.
• -: Connected to GND of the Arduino UNO.

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 Documentation (documentation.txt)

This document provides a comprehensive overview of the circuit, including the components used, their wiring details, and the code running on the Arduino UNO microcontroller.