i am just finishing a ADC2UART project for the raspberry pi. It allows the connecting of Analog devices to the pi via the uart with one simple chip. But im looking to get some people to test them for me in real projects. So im giving away several chips on my site www.pi-sense.co.uk
So if your planning or doing a project that requires ADC's have a look, you get a free chip and i get some feedback. Hope this doesnt flag up as advertising which i gues it is but i really just want to see if my idea works outside my bench.