SIM900A GSM Module with Antenna
SIM900A GSM Module with Antenna
SIM900A GSM Module with Antenna
SIM900A GSM Module with Antenna
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SIM900A GSM Module with Antenna – Reliable Wireless Communication for IoT & Embedded Applications

Original price was: 11.44$.Current price is: 4.41$. Exclusive of GST

Enhance your IoT and embedded systems with the SIM900A GSM Module, a compact and cost-effective solution for GSM-based communication. This module supports voice calls, SMS, and GPRS data transmission, making it ideal for automation, remote monitoring, and smart control applications.

Equipped with a high-gain detachable GSM antenna, the module ensures stable network connectivity even in low-signal areas. Designed around the SIM900A chipset, this module is compatible with a wide range of microcontrollers, including Arduino, ESP32, Raspberry Pi, and STM32.

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The onboard serial interface (UART) enables seamless integration into existing systems, and the TTL-level output allows for direct communication with 3.3V/5V logic controllers. Whether you’re developing a remote weather station, SMS-based control system, or IoT gateway, this module is engineered to deliver performance and reliability.

Key Features:

  • GSM/GPRS Quad-Band support: 850 / 900 / 1800 / 1900 MHz

  • Supports voice calls, SMS, and GPRS data

  • UART interface for easy MCU integration

  • AT command support via serial communication

  • Onboard power regulation and status indicators

  • High-performance external antenna included for better reception

  • Plug-and-play with Arduino, ESP32, STM32, and other microcontrollers

Technical Specifications:

  • Operating Voltage: 5V (regulated)

  • Current Consumption: Idle ~10mA, Transmission up to 2A

  • Communication Interface: UART (TTL Level)

  • Network Support: GSM/GPRS (2G only)

  • Antenna: SMA connector with external antenna included

  • SIM Slot: Standard SIM card (2G supported only)

Applications:

  • IoT-based remote data logging systems

  • Home and industrial automation

  • Security and alert systems

  • GSM-based vehicle tracking

  • SMS-based remote controls

  • Agriculture and irrigation control systems

Package Includes:

  • 1 x SIM900A GSM Module

  • 1 x Detachable GSM Antenna

Note: This module requires a 12V DC power supply for optimal performance. Please ensure a stable power source to avoid communication failures.

Weight 0.028 kg
Dimensions 4.9 × 5 × 1.3 cm

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SIM900A GSM Module with Antenna – Reliable Wireless Communication for IoT & Embedded Applications SIM900A GSM Module with Antenna – Reliable Wireless Communication for IoT & Embedded Applications
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