Hello guys!
I have a problem with displaying an image from Yun's(!) SD card to an Arduino TFT.
I know how to display it if a use a TFT's SD slot. But I don't want to use two different SD cards.
I know that I must use a bridge. But I don't know how.
Can anyone please help me?
Hi, spirit1. Sorry for hijacking the thread, but since you connected a yún and a TFT, could you give a hand with this?
Hi! 
You musn't use RX and TX (0 and 1) pins.
My configuration:
#define cs 7
#define dc 5
#define rst 9
TFT TFTscreen = TFT(cs, dc, rst);
I don't use SD CS -> SD slot on TFT.
I would like to also warn you that when you use ISCP pins for TFT, "wifi uploading sketch" stops working and I don't know why. I receive an error like this:
avrdude: AVR device not responding
avrdude: initialization failed, rc=-1
Now it's your turn to solve my problem 
Guys, really nobody knows this?
Hi There! Have you solved the Problem? I do have the same one! Uploading is possible while the TFT is disconnected but when it is connected I get the same "initialization failed, rc=-1" error....
Can somebody help?
Hallo! Hat jemand das Problem gelöst? Ich habe das selbe Problem beim Upload. Wenn das TFT angeschlossen ist bekomme ich diese "initialization failed, rc=-1" Fehlermeldung. Sobald ich das TFT weg lasse geht es, bekomme dann aber keine Bilder geladen... Kann mir jemand helfen?
Gruß
Rouven