It is with a heavy heart that I write this update. I have finally received the Flashair Wifi SD card the other day. While it works as advertised for pulling photos off of it wirelessly, it falls flat on its face when used in the GDEMU.
The reason for this is two-fold.
First of all, the big one: It doesn't go online when plugged into the GDEMU. It still shows up on the Dreamcast and works fine as a 16gb SD card, but it can't be reached, either through its web client , or through the mapped network drive in Windows. I've tested it in 2 PCs and my Wii as well, and in all of those devices it is accessible via the network (for the most part, I'll get to that in a minute). It's only when plugged into my Dreamcast's GDEMU that it's completely unaccessible over Wifi.
The second issue with it is that when uploading a file to it, it always fails at around the 600mb mark. The transfer speed will ramp in a nearly linear fashion to that point, and then instantly drop to zero. The cause for this is probably that the card disconnects from the Wifi at this time, as it becomes unaccessible after a failed upload attempt until you pull it out of the SD slot, wait 5 seconds, and put it back in again. Maybe the tiny, and at this point outdated circuitry can't handle the simultaneous write operation and wifi connection for more than a few seconds.
Now this may be a case of sour grapes, but I've been thinking ever since coming up with this idea in the first place: would having a working Wifi SD card really be that much more convenient than using a regular one? I would still have to have access to the power button of the Dreamcast, and I'd have to use a computer to send the files anyways. So this seems to me more like a novelty than anything else.
I do have an everdrive64 in the mail, and assuming it takes full size SDs, I will of course try this card in it, and report the results on here.
I was able to move an n64 rom onto it, so provided that the everdrive allows it to go on the network, we should be in business.
There are other brands of Wifi SD cards out there:
https://www.walmart.com/ip/WiFi-Wireles ... lsrc=aw.dshttps://www.amazon.com/Yuan-Yingze-Memo ... 402&sr=8-3but I think I'm done. If anybody else wants to pick up the torch though, I'd love to hear about it.