Packt Publishing has a free RPi ebook to give away today (US time, until tomorrow 13:00 NZ time). It requires sign-up and a spammable email-address, so don't use a valuable one. Learning Raspberry Pi https://www.packtpub.com/packt/offers/free-learning Volker -- Volker Kuhlmann http://volker.top.geek.nz/ Please do not CC list postings to me.