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Topic: Sim900 GPRS SHIELD problem help me all? (Read 999 times) previous topic - next topic


AT command not response. Power key pressed always return char àÿÿÿÿÿÿÿÿ€€€€€€€€€€€€€€€€€€.
i use Arduino Uno R3
          Linksprite Sim900 GPRS Shield external power is 5v 2.5A adapter
Help me!!!


Hi. Sometimes weird characters are caused by different baud rates.


Dec 17, 2013, 06:12 am Last Edit: Dec 17, 2013, 07:17 am by Fantilco Reason: 1
I solved thx man


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