TC35I GSM module GSM mobile dev board with voice interface

1,onboard TC35I double-frequency 900/1800 MHZ highly integrated GSM module;

 

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

 

3,onboard flip SIM gets stuck, easy loading and unloading of SIM card;

 

4,onboard 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)