To create a GPS tracker using an Arduino UNO that reports latitude and longitude to an LCD and sends a location link to a mobile phone, you'll use the Arduino UNO, Neo 6M GPS module, SIMA7670C 4G LM137 GSM Module, and a 16×2 LCD display. Below is a guide outlining the main steps, connections, components, code structure with libraries, and a simple cost approximation for the components based on typical prices in India.

Components and Purpose:

1. Arduino UNO ($350 - $700 INR): The microcontroller board for controlling the GPS and GSM modules, reading sensor data, and handling logic.
2. Neo 6M GPS Module ($400 - $800 INR): To receive GPS signals and determine the location.
3. SIMA7670C 4G LM137 GSM Module ($1500 - $2500 INR): To send the location via SMS. It requires a SIM card with a data plan.
4. LCD Display (16x2) ($150 - $300 INR): To display latitude/longitude values.
5. 12V 2A Power Supply ($200 - $400 INR): To power the GSM module, which often requires more current than the Arduino can provide.
6. Logic Level Converter ($100 - $200 INR): To safely connect the 3.3V GPS logic levels to the 5V logic of the Arduino if necessary.
7. Jumper Wires (Various Packs $100 - $300 INR): For making connections on the breadboard or PCB.
8. Push Buttons (Pack of 10: $50 - $100 INR): To create a user interface, if needed.
9. Voltage regulator (like LM7805 if necessary for additional components): To ensure stable 5V for the Arduino from the 12V supply ($20 - $50 INR).
10. Assorted Resistors and Capacitors (Packs: $100 - 500 INR): For debouncing buttons and smoothing power supplies.

Total approximate cost: ₹2900 - ₹6650 INR

High-level Guide and Circuit Connections:

1. Connecting the GPS Module to the Arduino:

   • VCC to 5V of Arduino
   • GND to GND
   • RX to a digital pin set for SoftwareSerial TX
   • TX to a digital pin set for SoftwareSerial RX

2. Connecting GSM Module to Arduino:

   • VCC to external 12V
   • GND to GND
   • TX to RX of Arduino through logic level converter if the GSM operates at 3.3V
   • RX to TX of Arduino through logic level converter if the GSM operates at 3.3V

3. Connecting LCD to Arduino:

   • VCC to 5V
   • GND to GND
   • SDA to A4 (for I2C communication)
   • SCL to A5 (for I2C communication)

4. Powering the System:

   • Use the 12V power supply for GSM and Arduino via the voltage regulator if required

Arduino Program and Required Libraries:

• TinyGPS++ or NeoGPS library for parsing GPS data.
• LiquidCrystal_I2C for the LCD display if using an I2C module.
• SoftwareSerial for GSM and GPS communication.
• SIM7600 library for the GSM module for making HTTP requests/sending SMS.

Sample Code Structure:

1. Initialize libraries and define pins for GPS, LCD I2C address, GSM module.
2. In the setup, initialize Serial Communication.
3. Initiate GPS and wait for signal.
4. Read GPS data, and display latitude and longitude on the LCD.
5. Use the GSM module to send an SMS with Google Maps link to the predefined mobile number.
6. Loop the above sending process at the desired intervals.

Notes:

• You'll need to create an account and obtain an HTTP API key from Google Maps for generating map links.
• Do check GSM module voltage requirements. A logic level shifter might be needed between the Arduino and the GSM if the voltages aren’t compatible.
• Regularly update software libraries to ensure compatibility.
• Test each module separately before integrating.

Regarding practical assembly, please be aware that setting up GSM modules and sending data across networks will require using the SIM card's APN settings, which are specific to the telecom provider.

Since you're seeking detailed technical steps including circuits and a comprehensive guide on software, consider referring to dedicated project pages on Arduino Project Hub, Create.arduino.cc, or accessing GitHub for community-contributed code that aligns with your project’s specifications. The costs of additional components are general estimates; you will need to check the current prices from a local electronics distributor or online

The "SIMA7670C 4G LM137 GSM Module" appears to be a or a common typo related to the SIMCOM A7670 series GSM/GPRS/G LTE modules. The SIMCOM A7670 series modules are typically used in communication and IoT (Internet of Things) applications which require cellular connectivity to communicate data or to provide a means for remote control.

The correct model seems to be SIM7670C, which is a module that provides communication capabilities. It allows devices to connect to cellular data networks and is capable of LTE CAT1 connectivity, offering up to 10 Mbps download speeds. It supports multiple frequency bands for LTE-FDD, LTE-TDD, HSPA+, and GSM/GPRS/EDGE making it versatile for global cellular communications.

These modules usually with a range of features, such as:

• Support for voice and SMS services.
• Data transfer with 4G LTE capabilities.
• GPS and GNSS positioning featuresdepending on the variant).
• Interfaces for SIM cards, antennas, and power supply.
• Serial communication capabilities through UART, which can interface with microcontrollers like the Arduino or embedded computers.

They are commonly used in applications that need to send or receive data over a cellular network, like remote sensor monitoring, vehicle tracking, and a variety of other IoT solutions.

The additional designation "LM137" might refer to a specific subseries or configuration of the module, or it could relate to a particular development kit or bundle that includes the module, an antenna, and possibly other components necessary for quick deployment.

For precise functionalities and specifications, it would be necessary to to the datasheet or product manual of the specific model in question, which would be provided by the manufacturer or the vendor.

The search results indicate different vendors and online stores selling the module or related products, which suggests that this module is widely used and it is supported with peripherals and kits for a variety of applications.