Circuit Documentation

Summary

This circuit is designed to manage and utilize solar energy efficiently. It includes a solar panel, an MPPT (Maximum Power Point Tracking) Solar Charge Controller (SCC), a 12V 200Ah battery, a buck converter, relays, an Arduino UNO, a WiFi module, various sensors, and actuators. The system is capable of monitoring and controlling various components to optimize energy usage and provide alerts.

Component List

Solar Panel

• Description: Converts sunlight into electrical energy.
• Pins: +, -

MPPT SCC

• Description: Manages the power from the solar panel to charge the battery and supply power to the load.
• Pins: SOLAR+, SOLAR-, BATTERY+, BATTERY-, LOAD+, LOAD-

12V 200Ah Battery

• Description: Stores electrical energy for later use.
• Pins: GND, 12V

Buck Converter

• Description: Steps down the voltage from the battery to a lower voltage suitable for other components.
• Pins: IN+, IN-, OUT+, OUT-

12V Relay

• Description: Electrically operated switch used to control a high-power circuit with a low-power signal.
• Pins: NO, COM, NC, IN, DC-, DC+

POWER SUPPLY 12V 5AMP

• Description: Converts 220V AC to 12V DC.
• Pins: 220V Positive Pole (AC), 220V Negative Pole (AC), GND, GND (DC), 12V-24V Output (DC)

Arduino UNO

• Description: Microcontroller used for controlling and monitoring the circuit.
• 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

Wifi Module ESP8266-01

• Description: Provides WiFi connectivity for the Arduino UNO.
• Pins: RX, GPIO0, GPIO2, GND, +3V3, Reset, CH-PD Chip power down, TX

MQ6

• Description: Gas sensor used to detect the presence of gas.
• Pins: VCC, GND, A0, DO

Servo

• Description: Actuator used for precise control of angular position.
• Pins: GND, VCC, PWM

Piezo Speaker

• Description: Produces sound when a voltage is applied.
• Pins: pin1, pin2

Siren

• Description: Produces a loud sound for alerts.
• Pins: Positive, Ground

2ch Relay

• Description: Dual-channel relay used to control multiple high-power circuits.
• Pins: NC, COM, NO, VCC, IN2, IN1, GND

Power 220V

• Description: Provides 220V AC power.
• Pins: hot wire, neutral wire

Wiring Details

Solar Panel

• + connected to SOLAR+ of MPPT SCC
• - connected to SOLAR- of MPPT SCC

MPPT SCC

• SOLAR+ connected to + of Solar Panel
• SOLAR- connected to - of Solar Panel
• BATTERY+ connected to 12V of 12V 200Ah Battery
• BATTERY- connected to GND of 12V 200Ah Battery
• LOAD+ connected to NO of 12V Relay
• LOAD- connected to GND of Arduino UNO, Ground of Siren, IN- of Buck Converter, pin1 of Piezo Speaker

12V 200Ah Battery

• 12V connected to BATTERY+ of MPPT SCC
• GND connected to BATTERY- of MPPT SCC

Buck Converter

• IN+ connected to COM of 2ch Relay, COM of 12V Relay
• IN- connected to LOAD- of MPPT SCC
• OUT+ connected to VCC of Servo, VCC of 2ch Relay, VCC of MQ6
• OUT- connected to GND of Wifi Module ESP8266-01, GND of 2ch Relay, GND of MQ6

12V Relay

• NO connected to LOAD+ of MPPT SCC
• COM connected to IN+ of Buck Converter
• NC connected to DC+ of 12V Relay
• IN connected to DC- of 12V Relay
• DC+ connected to 12V-24V Output (DC) of POWER SUPPLY 12V 5AMP
• DC- connected to GND (DC) of POWER SUPPLY 12V 5AMP

POWER SUPPLY 12V 5AMP

• 220V Positive Pole (AC) connected to hot wire of Power 220V
• 220V Negative Pole (AC) connected to neutral wire of Power 220V
• 12V-24V Output (DC) connected to DC+ of 12V Relay
• GND (DC) connected to DC- of 12V Relay

Arduino UNO

• GND connected to LOAD- of MPPT SCC
• Vin connected to COM of 2ch Relay
• 3.3V connected to +3V3 of Wifi Module ESP8266-01
• A0 connected to A0 of MQ6
• D6 connected to PWM of Servo
• D5 connected to IN1 of 2ch Relay
• D4 connected to IN2 of 2ch Relay
• D1 connected to RX of Wifi Module ESP8266-01
• D0 connected to TX of Wifi Module ESP8266-01

Wifi Module ESP8266-01

• GND connected to OUT- of Buck Converter
• +3V3 connected to 3.3V of Arduino UNO
• RX connected to D1 of Arduino UNO
• TX connected to D0 of Arduino UNO

MQ6

• VCC connected to OUT+ of Buck Converter
• GND connected to OUT- of Buck Converter
• A0 connected to A0 of Arduino UNO

Servo

• GND connected to OUT- of Buck Converter
• VCC connected to OUT+ of Buck Converter
• PWM connected to D6 of Arduino UNO

Piezo Speaker

• pin1 connected to LOAD- of MPPT SCC
• pin2 connected to NO of 2ch Relay

Siren

• Positive connected to NO of 2ch Relay
• Ground connected to LOAD- of MPPT SCC

2ch Relay

• NC connected to NO of 2ch Relay
• COM connected to Vin of Arduino UNO, COM of 12V Relay
• NO connected to pin2 of Piezo Speaker, Positive of Siren
• VCC connected to OUT+ of Buck Converter
• IN2 connected to D4 of Arduino UNO
• IN1 connected to D5 of Arduino UNO
• GND connected to OUT- of Buck Converter

Power 220V

• hot wire connected to 220V Positive Pole (AC) of POWER SUPPLY 12V 5AMP
• neutral wire connected to 220V Negative Pole (AC) of POWER SUPPLY 12V 5AMP

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 documentation provides a comprehensive overview of the circuit, including a summary, detailed component list, wiring details, and the code used in the microcontroller.