GSM Modem Sim900
- Quad-Band GSM/ 850/900/1800/1900MHz
- Voice Communication Port
- On-Board Voltage Regulator
- Power/Single LED indication
- SMA Connector for Antenna connection
- Compatible with Arduino, raspberry pi, arm, avr, pic, 8051
- Power Supply 12v 1amp to 2 amps max
- Use in the area of full signal strength.
- Perfectly suited for GSM-based Microcontroller Projects (better than SIM300 and other GSM Modems)
- Option for connecting MIC and SPEAKER directly to GSM MODEM for calls (LINE IN also available)
- Supports communication through RS232 with DB9 Connector, TTL Pins and I2C Pins
- CALL SMS GPRS facility - MIC input, LINE input and SPEAKER output pinsX