SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna

Add reliable GSM/GPRS cellular connectivity to your projects with the SIM900A module featuring a convenient RS232 serial interface and SMA antenna connector. Available at The Engineer Store, Bengaluru - your trusted source for communication modules with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.

Specifications

Key Features

• SIM900A Quad-Band Chipset: Industry-proven SIMCom module optimized for 900/1800 MHz bands widely used across India and Asia-Pacific regions.
• RS232 Serial Interface: Onboard MAX232 level shifter with DB9 connector allows direct connection to PCs, industrial PLCs, and legacy serial equipment without additional converters.
• SMA Antenna Connector: Standard SMA female jack with included external antenna ensures strong, reliable signal reception even in indoor or embedded installations.
• Complete Voice, SMS & Data: Supports voice calls, SMS messaging (text and PDU), GPRS data, and embedded TCP/IP stack for comprehensive cellular communication.
• Embedded TCP/IP Protocols: Built-in TCP, UDP, HTTP, and FTP support enables direct internet connectivity for IoT applications without requiring an external protocol stack.
• AT Command Driven: Fully controlled via standard GSM AT commands, making it easy to integrate with any microcontroller, single-board computer, or PC terminal software.
• Onboard Power Management: Includes voltage regulation circuitry to handle the SIM900A's peak 2A current demands, with a convenient DC power jack input.
• LED Status Indicators: Dedicated LEDs for power, network registration status, and ring indication provide instant visual feedback on module state.
• Standard SIM Slot: Push-in SIM card holder accepts any standard-size SIM card from major Indian telecom operators (Airtel, Jio 2G, Vi, BSNL, etc.).
• Compact & Mountable: Board-level module with mounting holes for easy integration into enclosures, control panels, and prototype setups.

Why Choose This SIM900A Module?

• Plug-and-Play RS232: Unlike bare SIM900A modules that require TTL-level interfacing and custom wiring, this board comes with built-in RS232 level conversion - connect directly to your PC's COM port or any RS232 device and start communicating immediately.
• Proven & Reliable Chipset: The SIM900A is one of the most widely deployed GSM modules globally, with extensive documentation, community support, and field-proven reliability across millions of installations.
• 100% Authentic Components: Genuine SIMCom SIM900A IC sourced from authorized distributors - no clones or refurbished chips that cause intermittent connectivity issues.
• Complete Ready-to-Use Package: Module ships with SMA antenna included, so you have everything needed to get cellular connectivity working out of the box.

Frequently Asked Questions

Buy SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna Online in India

Purchase the SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.

Looking to buy SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.