SIM900A GSM/GPRS Module

SIM900A GSM/GPRS Module Description

The SIM900A GSM/GPRS Module is a compact and reliable wireless communication module designed for GSM-based voice, SMS, and GPRS data applications. Powered by the SIMCom SIM900A chipset, it supports dual-band GSM networks (900MHz and 1800MHz), making it ideal for IoT projects, remote monitoring systems, home automation, vehicle tracking, security systems, and industrial automation. The module communicates with microcontrollers such as Arduino, ESP32, Raspberry Pi, AVR, PIC, and ARM boards through standard UART AT commands, enabling easy integration into embedded projects. It supports SMS messaging, voice calls, and wireless data transfer over GPRS networks.

Key Features

• Dual-band GSM/GPRS operation (900MHz / 1800MHz)
• Supports SMS, Voice Calls, and GPRS Data Communication
• UART Serial Interface with AT Command Support
• Compatible with Arduino, Raspberry Pi, ESP32, PIC, AVR, and ARM Controllers
• Built-in TCP/IP Stack Support
• Supports Text and PDU SMS Modes
• Low Power Consumption Sleep Mode
• External Antenna Interface for Better Signal Reception
• Supports 1.8V and 3V SIM Cards
• Industrial Operating Temperature Range
• Ideal for IoT, M2M, GPS Tracking, and Remote Monitoring Projects

Technical Specifications

• Module: SIMCom SIM900A
• Network Type: GSM/GPRS Dual-Band
• Frequency Bands: GSM 900MHz & DCS 1800MHz
• GPRS Class: Class 10
• Supply Voltage: 3.2V – 4.8V (Typical 4.0V)
• Peak Current: Up to 2A during transmission
• Baud Rate: 1200bps – 115200bps
• Communication Interface: UART
• SIM Card Support: 1.8V / 3V SIM
• Supported Protocols: TCP/IP, UDP, HTTP, FTP, PPP
• Operating Temperature: -40°C to +85°C

Applications

• SMS Alert Systems
• Home & Industrial Automation
• GPS Vehicle Tracking
• Remote Data Logging
• Security & Surveillance Systems
• Wireless Sensor Networks
• Smart Agriculture Projects
• IoT and M2M Communication Solutions

Package Includes

• 1 × SIM900A GSM/GPRS Module
• 1 × GSM Antenna