It is here:
http://www.numato.cc/content/freebie-week-32-channel-relay-controller-board
Monthly Archives: November 2014
2 Channel USB Relay Module
LM4550 AC’97 Stereo Audio Codec Expansion Module
It is here:
http://www.numato.cc/content/freebie-week-lm4550-ac97-stereo-audio-codec-expansion-module
Such module is very good to be used in audio communication. Recently I planed one such project!