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Topic: Sim900 Jumper s2 (Read 258 times) previous topic - next topic


Hey guys,
i'm running this shild and everything is working fine.

But on this Shield there are 3 Jumpers and i have absolutly no idea for what.
Can you help me and explain the function.

I already red all Datasheet but still no idea. The Shild works with all 3 Jumpers Connectet like in the Picture.

much thanks


Jun 20, 2017, 09:05 am Last Edit: Jun 20, 2017, 09:05 am by dannable
That isn't an Arduino product. You'd be better off asking the manufacturer / vendor.
Beginners guide to using the Seeedstudio SIM900 GPRS/GSM Shield

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