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Communication module

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SIM900A GSM/GPRS mobile development board


1,onboard SIM900A double-frequency 900/1800 MHZ highly integrated GSM/GPRS module;


2,onboard LM2596 high-power power supply chip, powerfully guarantee module work stably for a long time;


3,on-board flip SIM gets stuck, easy loading and unloading of SIM card;


4,on-board terminals or DC power supply (the default terminal), 7.5-12 v input voltage;


5,onboard audio interface and microphones, convenient user calls tests;


6,onboard UART interface, meet different user requirements;


7,onboard three LED lights: power light, signal lights, calls for;


8,PCB board size: 68.5 (mm) x38.5 (mm)