Introduction: Connect MicroSD Card to Arduino Without Shield
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Step 1: Knowing the Difference Between MicroSD Card and SD Card
I searched out web and find this very helpful photo showing differences
Step 2: Now Time for Making Connections Msd Pin 1 = X Msd Pin 2= Arduino Pin 8 Msd Pin 3 = Arduino Pin 12 Msd Pin 4 = +3.3 Volts Msd Pin 5 = Arduino Pin 13 Msd Pin 6 = GND Msd Pin 7 = Arduino Pin 11 Msd Pin 8 = X
pins 1 and 8 are not connected