GSM-SIM900A-TTL With Antenna

 GSM-SIM900A-TTL With Antenna

The SIM900A TTL Module is a dual-band GSM/GPRS module designed for embedded applications,featuring a TTL-level UART interface and an external antenna for improved signal reception. It is ideal for SMS, voice, and GPRS data communication in low-power and compact IoT systems.It supports GSM 900/1800 MHz bands and uses AT commands for communication with microcontrollers like Arduino,STM32, or Raspberry Pi (via USB-UART adapter).

DNA solutions, Nashik has various types of Module's. Check out our complete collection of Module's.

• Dual Band GSM (900/1800 MHz): compatible in most countries

• Supports: Voice Calls,SMS Messaging GPRS ,Internet Access

• TTL Serial Communication (UART): Operates at 3.3V or 5V logic level 

• Detachable Antenna (SMA or IPEX): Enhances signal strength and reception

• Standard AT Command Set: Easy integration with any microcontroller platform

• Compact Design: Ideal for space-limited projects

• Power Supply: Needs 4V regulated supply

Specifications of GSM-SIM900A-TTL With Antenna

• Module: SIM900A (GSM/GPRS)

• Frequency Bands: GSM 900 / 1800 MHz (Dual Band, Asia-specific)

• Network Support: 2G GSM only

• SMS Support: Text & PDU mode

• Antenna: External GSM Antenna 

• Power Supply Requirement: 3.4V – 4.4V DC

• Sleep Mode: Supported via DTR pin

Applications of  GSM-SIM900A-TTL With Antenna

• GSM-based Home Automation

• SMS-Based Alert or Notification Systems

• Remote Monitoring

• IoT Communication Modules

• Vehicle Tracking (with GPS)

• Industrial SMS control systems

Package Includes 

      1 x  GSM-SIM 900A-TTL with Antenna