ماژول GSM GPRS GPS A9G MODULE AI-THINKER:
A9G size: 19.2*18.8*2.7mm (+0.2mm)
The working temperature is – 30 C + 80 C.
The working voltage is 3.5V-4.2V, and 4V power supply is recommended.
Turn-on voltage > 3.5V;
The average current of low power consumption is less than 2ma.
Supporting four bands of GSM/GPRS, including 850,900,1800,1900 MHZ;
GPRS Class 10;
Support voice calls;
Support SMS message;
GPIO level is 2.8V;
Support GPRS data service, maximum data rate, download 85.6 Kbps, upload 42.8 Kbps;
Support standard GSM07.07, 07.05 AT commands and Ai-Thinker extension commands;
A6 supports two serial ports, one download serial port and one AT command port.
A9 supports three serial ports, one download serial port and one AT command port.
AT commands support standard AT and TCP/IP command ports.
Support digital and analog audio, support HR, FR, EFR, AMR speech coding;
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