ESP8266 Community Forum

Hello,

I wonder if it is possible to connect an SD or MicroSD card to ESP-01 and still have a PIN free to do other stuff (like controlling a led). I found a bunch of info, but they do not relate to ESP-01. It is maybe because you need more GPIO pins?

Thanks

ESP-01 doesn't have enough GPIOs, it has only 2 ...

But you can add more by soldering them to the central chip:

http://youtu.be/9RVyWZCSMtA

How many do you need to connect the sd?

Several ... If you have good soldering skills, then you can hookup SDCard reader like explained in this post :

viewtopic.php?f=32&t=3558&start=4#p20419