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[AVR] sim908 will reset wen i try to turn gps on

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mehranqwerty

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i have problem with sim908
when i try to connect by gprs and also try to use gps,
sim908 will reconnect and gps willbe off
i use someat to power on gps inside my code but it will reset the module and it doesnt work
please help me
tnx
 

What is the power source? do you use a regulator (what's the name of it)?

I had some issues not like yours but somehow, in my project I use a LM317T and if my input voltage drops under 8.4V then the SIM908 doesn't have sufficient current and doesn't want to start.

Probably your issue is do to not enough current. You must have at least 1.5A.
 

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