SIM900A GSM GPRS Module with TTL Port | Micro SIM Communication Board for Arduino, Raspberry Pi & IoT Projects

Description:

Stay Connected, Anytime, Anywhere — Simplify IoT Communication with the SIM900A GSM GPRS Module!

The SIM900A GSM GPRS Module is a compact, reliable, and cost-effective communication solution designed for Arduino, Raspberry Pi, and other microcontrollers. It supports GSM and GPRS networks, allowing your embedded projects to send and receive SMS, make calls, and connect to the internet with ease.

This TTL-level compatible module uses a Micro SIM slot and operates efficiently on dual-band GSM 900/1800 MHz networks — perfect for IoT applications like remote monitoring, data logging, or smart home systems.

Specification:

Model	SIM900A GSM/GPRS Module
Network Type	GSM 900/1800 MHz
Interface	UART / TTL
SIM Slot	Micro SIM
Power Supply	5V–12V DC
Communication	Serial (AT Commands)
Antenna	External antenna supported
Compatibility	Arduino, Raspberry Pi, ESP8266, ESP32, ARM, AVR

Features:

• 📡 GSM + GPRS Connectivity: Supports voice, SMS, and internet data transmission.
• 🔌 TTL Serial Communication: Direct connection to Arduino, ESP32, and microcontrollers.
• 💾 Micro SIM Support: Works with all major GSM network SIM cards.
• ⚡ Stable 12V Operation: Ensures consistent performance during long runs.
• 📶 Quad-band Capable: Works globally on GSM 900/1800 MHz bands.
• 🔄 AT Command Compatible: Easy setup and control via standard AT commands.
• 💡 Indicator LEDs: Power, network, and status LEDs for quick diagnostics.
  

⚡ Applications:

• IoT Device Communication
• Smart Home Automation
• Remote Data Logging
• Vehicle Tracking Systems
• Wireless Control Projects
• SMS and Call-Based Notifications

Interfaces:

• Interface to external SIM 3V/ 1.8V
• Analog audio interface
• RTC backup
• SPI interface (option)
• Serial interface
• Antenna pad
• I2C
• GPIO
• PWM
• ADC

Package Included:

• 1 x Sim 900A Module