Hai sir, we have a custom board(for iot product) ....in that we are using GSM sim900A....till now we used 12V/2A power adapter to give power to my board for testing purpose...but,in real time scenario which one i should use for my custom board to give 12V/2A exactly??? can you please give any solu…

Instead of 12V/2A Power Adapter How to give power to GSM module real time usage

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