Just about all our Pi plates work fine (except for the Wolfson Audio plates, see below!) They just may overhang the USB/Ethernet port side by 1/2cm
- PiTFT - pinout and electric-wise it works and is tested, but our custom PiTFT kernel does not support the new USB/Ethernet chipset. We're working on it and hope to release a new version soon!
- 16x2 Character LCD plates (not tested yet but we're pretty confident it works)
- Proto Plate (not tested yet but we're pretty confident)
Any monitors that are HDMI based
Any displays that are NTSC-based - they just need to have a proper A/V cable that brings out the 4th Video pin!
Any other cables, such as USB console cables, microUSB cables, Ethernet cables, HDMI to VGA adapters, USB hubs, power packs.
We'll try to keep track of all the things that would work with the model B that no longer does!
If you have an older Raspbian or NooBs or whatever (before ~ June 20 2014) do a sudo apt-get update and sudo apt-get upgrade to update your kernel & firmware! Without new kernel/firmware, the USB/Ethernet chip doesn't work so make sure you do this on a Model B since you need to have ethernet or USB to work in order to download the files over the Internet!
#1 thing is anything that using a 26-pin GPIO cable:
This means that Adafruit Cobbler, T-Cobbler, PermaProto Pi do not work anymore out-of-the-box.
However you can make them work if you have a 40pin->26pin 'downgrader' cable