I currently have a GPU that I use for occasional mining when my PC is on, I'm looking to have something running more permanent such as low powered FPGA board.
From reading this forum ZTEX seem to be the best option, however their 1.15x and 1.15y versions appear to have disappeared from their shop. They still have the 1.15b and 1.15d options, although I'm wondering if these are any good? According to this website
http://www.ztex.de/btcminer/ the 1.15d can perform at 215 MH/s, has anyone used this before?
I have a spare Raspberry PI I've been using for experimenting, and I'll be using the MinePeon in this post
https://bitcointalk.org/index.php?topic=137934.0 to control the mining hardware
Thanks for any help offered