DescriptionA7 GSM/GPS ShieldA7 GPRS/GSM/GPS Shield, which is use the newest A7 GSM/GPRS/GPS module, A7 module is a GSM/GPRS/GPS function module. Supports GSM/GPRS Quad-Band（850/900/1800/1900） network. It supports voice calls, SMS messages, GPRS data service and GPS function. The module is controlled by AT command via UART and supports 3.3V and 4.2V logical level.Specification:Operating temperature -30 ℃ to 80 ℃1KG peak suctionLow standby currentOperating Voltage: 3.3V – 4.2VPower voltage: >3.4V;Standby average current 3ma less;Support the GSM / GPRS four bands, including 850,900,1800,1900MHZGPRS Class: 10Sensitivity: <-105Support voice callsSupport SMS text messagingSupport GPRS data traffic, the maximum data rate, download 85.6Kbps, upload 42.8KbpsSupports standard GSM07.07,07.05 AT commands and extended commands Ai-ThinkerSupports two serial ports, a serial port to download an AT command portAT command supports the standard AT and TCP / IP command interface
