Project Documentation

ESP32-Based Cellular and GPS Tracking System with User Interface

Circuit Documentation

Summary

The circuit in question appears to be a communication and tracking system that utilizes a GSM module (SIM 800L V2.0) for cellular connectivity, an ESP32 microcontroller for processing and control, a GPS module (Neo 6M) for location tracking, and a Polymer Lithium Ion Battery for power supply. Additional components include a pushbutton for user input, an LED for visual output, a voltage regulator to maintain stable voltage levels, and a resistor to limit current to the LED. The circuit is designed to interface the GSM module with the ESP32 for data communication, use the GPS module for location tracking, and provide user interaction through the pushbutton and visual feedback via the LED.

Component List

SIM 800L V2.0 GSM Module

GSM cellular communication module
Pins: SIM_TXD, VDD, SIM.RXD, 5V/4V, GND, RST

ESP32 (30 pin) Microcontroller

32-bit microcontroller with Wi-Fi and Bluetooth capabilities
Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, Vin, D23, D22, TX0, RX0, D21, D19, D18, D5, TX2, RX2, D4, D2, D15, 3V3

Polymer Lithium Ion Battery - Generic

Rechargeable battery for power supply
Pins: GND, VCC

Neo 6M GPS Module

GPS receiver module for location tracking
Pins: GND, TX, RX, VCC

Pushbutton

Standard pushbutton for user input
Pins: Pin 2, Pin 1, Pin 3, Pin 4

LED: Two Pin (white)

White LED for visual indication
Pins: cathode, anode

Voltage Regulator

Component to regulate input voltage to a stable output voltage
Pins: GND, IN, OUT

Resistor

Passive component to limit current
Resistance: 200 Ohms
Pins: pin1, pin2

4G Antenna

Antenna for enhancing GSM module signal reception
Pins: Connection

Wiring Details