

SIM900A GSM Module – Quad-Band GPRS Communication for Arduino & Embedded Systems
The SIM900A GSM Module is a reliable, quad-band GSM/GPRS communication module ideal for integrating mobile connectivity into embedded projects. It supports SMS sending/receiving, voice calls, and GPRS data transmission, making it perfect for IoT applications. Easily controlled via AT commands through UART, this module is compatible with Arduino, ESP32, STM32, and other microcontrollers. Its compact size and low power consumption make it suitable for remote monitoring, security systems, and automation projects.
Features:
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Quad-band GSM/GPRS: 850/900/1800/1900 MHz
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Supports SMS, voice calls, and GPRS data
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UART serial communication with AT command set
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Compatible with Arduino, ESP32, Raspberry Pi, STM32
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Low power consumption
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Onboard antenna connector for better signal reception
Applications:
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IoT devices
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Remote monitoring systems
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Home and industrial automation
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SMS-based control projects
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GPS/GSM tracking solutions