It includes SIMCOM SIM800A GSM/GPRS Modem with TTL Outputs suitable for Industrial, Commercial and Hobbyist Applications.
Compatible with almost all popular Development Boards and Microcontrollers such as 8051, AVR, Arduino and Raspberry Pi. Requires regulated Voltage Supply at 4V DC/2A.
Positron’s In-House Development and Manufactured Modem.
This is a modular multi purpose PCB that has been designed to handle-
a. Only GSM Module
b. Only GPS Module
c. Both GSM and GPS Modules
d. Dimensions- 3.5cm*5cm*1.1cm
GSM Option- Quad Band SIM800 or SIM800A GSM Modules from SIMCOM
GPS Option- Quectel L80 GPS Module with Patch Antenna
Required DC Voltage Supply +6VDC to +15VDC/Current peak 2A
GSM Output Pins-Speaker +/-, Mic +/-, TTL Rx and TTL Tx Outputs
GPS TTL Tx Output
Provision for external GSM and GPS Antenna through SMA Connectors
This modem is built with SIM800A that supports Quad-band 850/900/1800/1900MHz, it can transmit Voice, SMS and data information with low power consumption. With a small footprint, it can fit into slim and compact demands of customer design and is especially useful for faster turnaround time in development phase as well as manufacturing of larger systems.
The Modem comes with TTL interface, which allows the user to connect to microcontroller as well as PC through USB to TTL module. The baud rate is configurable from 9600- 115200 through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable the enable the user to connect with internet via GPRS. It is suitable for sending SMS, Voice as well as DATA transfer application in M2M interface. Using this modem, user can make audio calls, sending SMS, Reading SMS, attend the incoming calls and internet etc., through simple AT commands.
If you are NOT comfortable in designing or working with external voltage regulators, please go with our other product- http://positrontech.in/product/sim-800-ttl-lm2576-modem/
It will NOT work with 7805 Based Voltage Regulator.