Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with various components including a current sensor, an I2C LCD display, a buzzer, a SIM800L module, a 4G antenna, AC bulbs, a transformer, rocker switches, a 12V power supply, and an AC source. The Arduino UNO is used to control and monitor the components, while the SIM800L module provides GSM communication capabilities.

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

AC Bulb

• Description: Standard AC bulb.
• Pins: P, N

Transformer

• Description: A device that transfers electrical energy between two or more circuits through electromagnetic induction.
• Pins: 4, 1, 2, 3

16x2 I2C LCD

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

Buzzer

• Description: An audio signaling device.
• Pins: PIN, GND

SIM800L

• Description: A GSM/GPRS module for communication.
• Pins: NFT, RING, VCC, DTR, RST, MIC +, RXD, MIC-, TXD, SPK+, GND, SPK-

4G Antenna

• Description: An antenna for 4G communication.
• Pins: Connection

Rocker Switch

• Description: A switch that rocks back and forth to open or close a circuit.
• Pins: 1, 2

Current Sensor 5A

• Description: A sensor to measure current up to 5A.
• Pins: 1, 2, GND, OUT, VCC

12V Power Supply

• Description: A power supply providing 12V output.
• Pins: +, -

AC Source

• Description: An AC power source.
• Pins: +, -

Wiring Details

Arduino UNO

• 5V connected to VCC of Current Sensor 5A and 16x2 I2C LCD.
• GND connected to GND of Current Sensor 5A, 16x2 I2C LCD, and Buzzer.
• A0 connected to OUT of Current Sensor 5A.
• A2 connected to TXD of SIM800L.
• A3 connected to RXD of SIM800L.
• D12 connected to SDA of 16x2 I2C LCD.
• D11 connected to SCL of 16x2 I2C LCD.
• D2 connected to PIN of Buzzer.

AC Bulb

• P of one AC Bulb connected to 2 of Rocker Switch.
• N of one AC Bulb connected to 2 of Transformer.
• P of another AC Bulb connected to 2 of another Rocker Switch.
• N of another AC Bulb connected to 2 of Transformer.

Transformer

• 2 connected to N of AC Bulbs.
• 4 connected to + of AC Source.
• 1 connected to - of AC Source.
• 3 connected to 1 of Current Sensor 5A.

16x2 I2C LCD

• VCC connected to 5V of Arduino UNO.
• GND connected to GND of Arduino UNO.
• SDA connected to D12 of Arduino UNO.
• SCL connected to D11 of Arduino UNO.

Buzzer

• PIN connected to D2 of Arduino UNO.
• GND connected to GND of Arduino UNO.

SIM800L

• TXD connected to A2 of Arduino UNO.
• RXD connected to A3 of Arduino UNO.
• VCC connected to + of 12V Power Supply.
• GND connected to - of 12V Power Supply.
• NFT connected to Connection of 4G Antenna.

4G Antenna

• Connection connected to NFT of SIM800L.

Rocker Switch

• 2 of one Rocker Switch connected to 1 of another Rocker Switch and P of AC Bulb.
• 2 of another Rocker Switch connected to P of another AC Bulb.

Current Sensor 5A

• VCC connected to 5V of Arduino UNO.
• GND connected to GND of Arduino UNO.
• OUT connected to A0 of Arduino UNO.
• 1 connected to 3 of Transformer.
• 2 connected to 1 of Rocker Switch.

12V Power Supply

• + connected to VCC of SIM800L.
• - connected to GND of SIM800L.

AC Source

• + connected to 4 of Transformer.
• - connected to 1 of Transformer.

Code Documentation

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:

}

documentation.txt