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09/01/2013

Arduino & ESP8266 stuff

There are Arduino shields (like the modern Ethernet shield) that allow you to attach an SD card to your arduino. However if you are building a project that just needs a way to store data, then such a shield might be overkill.
It is possible to directly attacht an SD card to an Arduino and even then there is a cheap way and a more expensive elegant way.
The elegant way is to buy an SD card holder to solder on a circuitboard. These however come at a price.
Another way is to use the SD to microSD converter  that comes with most micro SD cards and use that one to solder to the circuitboard. Obviously that has a limitation as one then only can use micro SD cards and not the regular size SD cards.

SD card

The circuit in fact is pretty easy. other than ground and a powersupply line…

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