SIM900 SIM900A GPRS Module GSM Development Board Industrial Level w/ DTMF MMS GPS

SIM900 SIM900A GPRS Module GSM Development Board Industrial Level w/ DTMF MMS GPS

Description:
- M2M004 SIM900A remote monitoring development board
- With super STC12 SCM, 63X39mm portable size enables the board can be put into the sealed waterproof box
- High precision ublxo-6m-001 GPS circuit is reserved, precision positioning is possible.

Functions:
- Telephone: calling functuon, can be used with DTMF
- GPRS: collecting information and update to server, or remote control through the Internet .
- Message: when any abnormal things happens the device will also send a message to the householder.
- MMS: MMS, is that you can send pictures. Very useful in the security and intelligence Home furnishing field
- LBS: place positioning, through the serial port to locate latitude and longitude of module
- DTMF: we can control the devices through DTMF, it's like a remote control button

Specification:
- SIM900A+STC12LE5A60S2 structure, STC12LE5A60S2 SCM dual serial, the same with the STC12C5A60S2 program, dual serial port. 3.3V power supply , can directly connect with SIM900A , MAX3232 chip is not needed
- 32 IO ports derived from SCM
 A, 60KFlash and 1280 bytes of SRAM running operating system
 B, 8 Road, 10 Bits AD: can detect the voltage, current.
 C, 2 serial: A and GPRS communication, one can take another UART peripherals.
 D, with hardware SPI
- Reserve U-BLOX NE6M-001 GPS module circuit
- 5V power supply or lithium battery, the capacity is about 2A. 470uf capacitor is more stable. output voltage of 3.3V chip is up to 500mA
- GPS and GPRS serial port and STC single chip microcomputer 2 serial port can be freely combined
- Dimensions: 63X39mm can be loaded into sealed waterproof box.
- provides a schematic, tutorials and remote location GPRS+GPS reference procedures.