Hello experts!! I need help here. I have this link rhydoLABZ INDIA, reliable source to buy Embedded & Robotic kits . As you can see this page describes how to connect GSM SIM900 but I am using SIM900D and SIM900D has not same pins as SIM900. So what changes should I make in that schematic if I am us…

Interfacing Sim900D and LCD with Arduino UNO

system May 5, 2014, 8:54pm 4

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