SIM900A Wireless GSM GPRS Module with Antenna

The SIM900A Wireless GSM GPRS Module with Antenna is a 5V UART TTL cellular module built on the SIMCom SIM900A chipset, covering quad-band GSM 850, 900, 1800, and 1900 MHz with an onboard standard SIM card holder and an included external GSM antenna. The sim900a wireless gsm module communicates via TTL serial AT commands, making it directly compatible with Arduino Uno, Arduino Mega, and any 5V TTL microcontroller without RS232 adapters, level converters, or external voltage regulators. Voice calls, SMS send/receive, and GPRS data are all supported through the same AT command set used across the SIM900 family.

The sim900a gsm gprs module’s 5V DC supply makes it straightforward to power from the same USB or DC adapter that powers the Arduino host board, simplifying prototyping and lab builds. The gsm module sim900a uses the standard AT command set shared with SIM800 and SIM900 series modules — existing Arduino GSM library sketches and community tutorials written for any SIM900-series module work without modification. One practical trade-off: like all SIM900-series GPRS modules, the wireless gsm gprs module operates on 2G GSM and GPRS only. In areas where 2G network coverage has been discontinued by operators in India, verify 2G availability at the intended deployment location before using this module for new IoT product development.

The sim900a gsm module price is justified for students learning cellular communication, makers building field sensors, and engineers prototyping SMS alert systems. It works with the Arduino IDE and PlatformIO over serial. To get started, insert an active SIM, connect UART TX and RX to board, and send AT over serial monitor. StemVolt provides fast, reliable delivery of IoT and electronics components across India with trusted service and support.

• Checkout the SIM800A AE GSM GPRS Module With SMA Antenna

Features:

• SIMCom SIM900A quad-band covers GSM 850 900 1800 1900MHz globally
• 5V UART TTL connects directly to Arduino without level converter
• Standard SIM card holder suits regular SIM without adapter needed
• Voice SMS and GPRS data via AT commands over UART interface
• External GSM antenna improves signal over PCB trace antenna alternatives

Technical specifications:

 Applications:

• SIM900A Wireless GSM GPRS Module used for Arduino SMS alert system build
• Project uses sim900a wireless gsm module for GPRS data upload
• Remote monitor uses gsm gprs sim900a for AT command GPRS reporting
• Arduino security system uses sim900a gsm gprs module for SMS trigger
• Field IoT node uses wireless gsm gprs module for regular SIM deployment

Package includes:

• 1 x SIM900A Wireless GSM GPRS Module