Gsm Modem - Sim900a Module | Plug And Play With Rs232, Ttl Serial, Usb Interface, Supports Sms And Calls

With our huge ethnically excellence, we are actively committed towards trading and supplying a wide assortment of GSM Modem from Udupi, Karnataka, India. This is a plug and play GSM Modem with a simple to implement RS232, TTL serial and USB interface. It works on frequencies 900/ 1800 MHz. Use it to send SMS, make and receive calls, and do other GSM operations by simple AT commands through a serial interface from microcontrollers and computers. It uses the popular SIM900A module for all its GSM operations. It comes with a standard RS232 interface which can be used to easily interface the modem to microcontrollers and computers. Through USB, the modem can be operated from a computer to send/receive calls, messages, etc.
The modem consists of all the external circuit required to start experimenting with the SIM900A module like the power regulation, external antenna, SIM Holder, etc.