ماژول GPRS / GSM / GPS / BDS چهار باند A9G دارای ارتباط سریال

توضیحات

Description :
The A9G development board is a multifunctional development board based on EMC’s A9G GPRS/ GSM + GPS/ BDS module, you can use it to verify the basic communication and peripheral functions of A9G module. It has the basic phone/ SMS, GPRS networking communications and GPG/ BDS dual mode positioning function. There are lithium battery charge management, microphone, speaker interface, USB communication interface, multiple user keys/ led, TF card slot, acceleration sensor, SPI interface, I2C2 interface, ADC interface on the boards, so you can develop different functions with this board.

Features:
Working voltage: 5v USB or Lipo battery(3.3V-4.2V)
Support the GSM / GPRS four bands, including 850,900,1800,1900MHZ
Support GPS/BDS
Supports digital audio and analog audio, supports HR, FR, EFR, AM R voice coding
Support voice calls and SMS messages
Embedded network service protocol stack
Support standard GSM07.07.07.05AT command
GPIO level: 2.8v
Size: 19.2mm x 18.8mm x 3mm