* Designed to work with the GSM Sim800l,maybe work with SIM900L * * This library use SoftwareSerial, you can define de RX and TX pin * in the header "Sim800l.h" ,by default the pin is RX=10 TX=11.. * be sure that gnd is attached to arduino too. * You can also change the other preferred RESET_PIN * This document gives an overview of the LinkSprite GSM/GPRS module: a miniature, single-side board, quad-band GSM 850/EGSM 900/DCS 1800/PCS 1900 module, ready for integration in various kinds of Fix wireless phones and other wireless devices. 1.2 SYSTEM BLOCK DIAGRAM Figure 1: System block diagram 1.3 PRODUCT OVERVIEW

Smallest SIM800C GPRS GSM Module MicroSIM Card Core Board Quad-band TTL Serial Port Compatible SIM800L SIM900A General features GPRS multi-slot class 12/10 GPRS mobile station class B Compliant to GSM phase 2/2+ Class 4 2 W @ 850/900 MHz Class 1 1 W @ 1800/1900MHz FM 76 109MHz worldwide bands with