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User avatar
By new299
#54156 Using the notes posted here I've designed a ESP8266 SD card board which you can buy here:

http://www.whitefordresearch.com/produc ... e-preorder

I also wrote up my notes on the SD card interface here:

http://41j.com/blog/2016/08/the-esp8266-and-sd-cards/

I've also been able to get the SD card working with the native esp-open-sdk using MetalPhreak's SPI library with some modifications (critically to enable duplex transfers).
User avatar
By vaclavvava
#55947
liminal18 wrote:catalex sd card reader.
Any idea what I'm doing wrong? Using female to female connectors was using a breadbard before. :D


I spent 1 day with the same problem :-).
Catalex is for 5V arduino, not for 3,3V ESP. You can see on card reader board convertor Ucc 5V to 3,3V and signal convertor (circuit with a lot of pins). If You use for example SD card reader, which is on back LCD TFT, it works. In this case You can see on card reader only 3 resistors. Dont forget connect power (3,3V) to LCD TFT display board.
User avatar
By Navid GM
#56197 Gentlemen,

I have a question regarding the wiring.

I have connected the SD card to ESP8266 as per instruction, do I need to use any type of resistors ? My memory card is getting very hot when I turn on the ESP and I have to immediately remove it. I checked the wiring multiple times.

I purchased one of the memory card shield and connect to my ESP, was working well:

http://www.ebay.ca/itm/Micro-SD-Storage ... SwT6pVxW71

I also had experience getting hot with this module but once per 10 times. any thought ?

Thanks
Navid