Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes various components such as Arduino UNO microcontrollers, a servo motor, a power jack, buck converters, a USB power bank module, an LCD screen, a solar charge controller, LDR modules, a voltage sensor, a battery, and a solar panel. The circuit is designed to interface these components to achieve a specific functionality, which is controlled by the Arduino UNO microcontrollers.

Component List

1. 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

2. Servo Motor MG996R

   • Description: A high-torque servo motor.
   • Pins: PMW, VCC 5V, GND

3. Power Jack

   • Description: A standard power jack for connecting external power sources.
   • Pins: POSITIF, NEGATIF

4. Buck Converter

   • Description: A DC-DC converter that steps down voltage.
   • Pins: IN+, IN-, OUT+, OUT-

5. DIY Triple USB Power Bank Module

   • Description: A module for providing USB power.
   • Pins: -VE TERMINAL, +VE TERMINAL

6. LCD Screen 16x2 I2C

   • Description: A 16x2 character LCD screen with I2C interface.
   • Pins: SCL, SDA, VCC, GND

7. Solar Charge Controller

   • Description: A controller for managing solar panel charging.
   • Pins: Solar Cell +, Solar Cell -, Battery +, Battery -, Load +, Load -

8. LDR Module 3 Pin

   • Description: A light-dependent resistor module.
   • Pins: VCC, GND, DO

9. 12V 7Ah Battery

   • Description: A 12V, 7Ah rechargeable battery.
   • Pins: 12v +, 12v -

10. Solar Panel

    • Description: A solar panel for generating electricity.
    • Pins: gnd, vcc

11. Voltage Sensor DC 25V

    • Description: A sensor for measuring DC voltage up to 25V.
    • Pins: +, -, output, gnd, vcc

Wiring Details

Arduino UNO

• 3.3V connected to Voltage Sensor DC 25V (+)
• 5V connected to LDR Module 3 Pin (VCC), LDR Module 3 Pin (VCC), LCD Screen 16x2 I2C (VCC)
• GND connected to LDR Module 3 Pin (GND), Voltage Sensor DC 25V (-), LDR Module 3 Pin (GND), LCD Screen 16x2 I2C (GND)
• A0 connected to Voltage Sensor DC 25V (output)
• SCL connected to LCD Screen 16x2 I2C (SCL)
• SDA connected to LCD Screen 16x2 I2C (SDA)
• D9 connected to Servo Motor MG996R (PMW)
• D3 connected to LDR Module 3 Pin (DO)
• D2 connected to LDR Module 3 Pin (DO)

Servo Motor MG996R

• PMW connected to Arduino UNO (D9)
• VCC 5V connected to Arduino UNO (5V)
• GND connected to Arduino UNO (GND)

Power Jack

• POSITIF connected to Buck Converter (OUT+)
• NEGATIF connected to Buck Converter (OUT-)

Buck Converter

• IN+ connected to Solar Charge Controller (Battery +), DIY Triple USB Power Bank Module (+VE TERMINAL), Voltage Sensor DC 25V (vcc), 12V 7Ah Battery (12v +)
• IN- connected to Solar Charge Controller (Battery -), DIY Triple USB Power Bank Module (-VE TERMINAL), Voltage Sensor DC 25V (gnd), 12V 7Ah Battery (12v -)
• OUT+ connected to Power Jack (POSITIF)
• OUT- connected to Power Jack (NEGATIF)

DIY Triple USB Power Bank Module

• +VE TERMINAL connected to Buck Converter (IN+)
• -VE TERMINAL connected to Buck Converter (IN-)

LCD Screen 16x2 I2C

• SCL connected to Arduino UNO (SCL)
• SDA connected to Arduino UNO (SDA)
• VCC connected to Arduino UNO (5V)
• GND connected to Arduino UNO (GND)

Solar Charge Controller

• Battery + connected to Buck Converter (IN+)
• Battery - connected to Buck Converter (IN-)
• Solar Cell + connected to Solar Panel (vcc)
• Solar Cell - connected to Solar Panel (gnd)

LDR Module 3 Pin

• VCC connected to Arduino UNO (5V)
• GND connected to Arduino UNO (GND)
• DO connected to Arduino UNO (D3)

12V 7Ah Battery

• 12v + connected to Buck Converter (IN+)
• 12v - connected to Buck Converter (IN-)

Solar Panel

• gnd connected to Solar Charge Controller (Solar Cell -)
• vcc connected to Solar Charge Controller (Solar Cell +)

Voltage Sensor DC 25V

• + connected to Arduino UNO (3.3V)
• - connected to Arduino UNO (GND)
• output connected to Arduino UNO (A0)
• gnd connected to Buck Converter (IN-)
• vcc connected to Buck Converter (IN+)

Documented Code

Arduino UNO (Instance 1)

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

}

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

}

Arduino UNO (Instance 2)

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

}

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

}

This documentation provides a comprehensive overview of the circuit, including the components used, their wiring details, and the code running on the microcontrollers.