Circuit Documentation

Summary

This circuit integrates an Arduino UNO microcontroller with various components including a Sim800l GSM module, a Polymer Lithium Ion Battery, a red LED, a 5V relay, a rocker switch, a resistor, and an MKE-S03 Photo Diode Light Sensor. The circuit is designed to perform various functions such as controlling the LED, reading light levels, and communicating via GSM.

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

Sim800l

• Description: A GSM/GPRS module for communication.
• Pins: NET, RST, VCC, RXD, TXD, GND

Polymer Lithium Ion Battery - 850mAh

• Description: A rechargeable battery.
• Pins: GND, VCC

LED: Two Pin (red)

• Description: A red light-emitting diode.
• Pins: cathode, anode

5V Relay

• Description: An electromechanical switch.
• Pins: Normally Open, Common terminal, Normally Closed, In, GND, VCC

Rocker Switch

• Description: A switch to control the power supply.
• Pins: output, input

Resistor

• Description: A 220 Ohms resistor.
• Pins: pin1, pin2

MKE-S03 Photo Diode Light Sensor

• Description: A light sensor.
• Pins: SIG, 5V, GND

Wiring Details

Arduino UNO

• GND: Connected to the cathode of the LED, GND of the Polymer Lithium Ion Battery, GND of the Sim800l, GND of the 5V relay, and GND of the MKE-S03 Photo Diode Light Sensor.
• 5V: Connected to the 5V pin of the MKE-S03 Photo Diode Light Sensor, VCC of the Sim800l, and VCC of the 5V relay.
• Vin: Connected to the output of the rocker switch.
• A1: Connected to the SIG pin of the MKE-S03 Photo Diode Light Sensor.
• D13: Connected to pin2 of the resistor.
• D4: Connected to the In pin of the 5V relay.
• D3: Connected to the TXD pin of the Sim800l.
• D2: Connected to the RXD pin of the Sim800l.

Sim800l

• VCC: Connected to the 5V pin of the Arduino UNO.
• GND: Connected to the GND pin of the Arduino UNO.
• RXD: Connected to the D2 pin of the Arduino UNO.
• TXD: Connected to the D3 pin of the Arduino UNO.

Polymer Lithium Ion Battery - 850mAh

• GND: Connected to the GND pin of the Arduino UNO.
• VCC: Connected to the input of the rocker switch.

LED: Two Pin (red)

• cathode: Connected to the GND pin of the Arduino UNO.
• anode: Connected to pin1 of the resistor.

5V Relay

• VCC: Connected to the 5V pin of the Arduino UNO.
• GND: Connected to the GND pin of the Arduino UNO.
• In: Connected to the D4 pin of the Arduino UNO.

Rocker Switch

• output: Connected to the Vin pin of the Arduino UNO.
• input: Connected to the VCC pin of the Polymer Lithium Ion Battery.

Resistor

• pin1: Connected to the anode of the LED.
• pin2: Connected to the D13 pin of the Arduino UNO.

MKE-S03 Photo Diode Light Sensor

• 5V: Connected to the 5V pin of the Arduino UNO.
• GND: Connected to the GND pin of the Arduino UNO.
• SIG: Connected to the A1 pin 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 documentation provides a comprehensive overview of the circuit, including a detailed list of components, their wiring connections, and the code used in the Arduino UNO microcontroller.