Shrink Your Raspberry Pi With MicroSD Card Slot

The Raspberry Pi itself is about the size of a credit card, but it only has a standard full sized SD card slot. When you plug in a standard full sized SD card into it, the card sticks out of the outline of the Raspberry Pi, making the overall size slightly larger.
Shrink Your Raspberry Pi With MicroSD Card Slot
My solution is to add a microSD card slot to the Raspberry Pi permanently, and in a location that does not stick out of the original Raspberry Pi outline.

There are two solutions that I have done. One is easy, the other requires slightly more soldering skills.

For the first easy method, you need a microSD card to full sized SD card adapter, some solid core insulated wire that is thinner than 24 gauge, and some solder plus equipment. The idea is to place the adapter underneath the Raspberry Pi, right beside the SD card slot. The pads on the adapter should be facing up, this way, each pin on the adapter will be right next to the corresponding pin on the slot. Solder small pieces of wire between the adapter and the slot’s pins. You also need to short out the “card detect pins” of the original SD card slot to trick the system into thinking that a card is inserted.
Shrink Your Raspberry Pi With MicroSD Card Slot
Using this method, the overall thickness of the Raspberry Pi does not increase at all. The microSD card will boot Linux normally while it is plugged into the adapter you’ve just soldered on, and standard full sized SD cards will still work while plugged into the original full sized SD card slot.

 

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