SIM 808 GSM + GPS Modem

The SIM 808 GSM + GPS Modem is an integrated communication module that combines GSM GPRS cellular connectivity with GPS positioning capability. It enables embedded systems to perform SMS, voice, data communication, and real time location tracking in a single compact solution.

This module is widely used in vehicle tracking systems, IoT monitoring devices, fleet management, asset tracking, and remote control applications. It communicates using AT commands over UART interface and supports standard SIM card operation.

KEY FEATURES

• Integrated GSM GPRS and GPS functionality
• Quad band GSM 850 / 900 / 1800 / 1900 MHz
• Built in GPS receiver for location tracking
• Supports SMS voice and GPRS data
• UART serial communication interface
• External GSM and GPS antenna support
• AT command based control
• Suitable for tracking and IoT systems

SPECIFICATIONS

• Model = SIM808
• Operating Voltage = 5V DC typical
• GSM Frequency = 850 / 900 / 1800 / 1900 MHz
• GPS Receiver = Integrated
• Communication Interface = UART
• Data Support = GPRS Class 10
• SIM Interface = Standard SIM card
• Operating Temperature = 0C - 70C

INTERFACES

• VCC = Power supply input
• GND = Ground reference
• TXD = UART transmit
• RXD = UART receive
• RST = Reset input
• PWRKEY = Power control
• GSM ANT = GSM antenna connector
• GPS ANT = GPS antenna connector
• SIM Slot = SIM card interface