The next Hack and Tell will be on Friday, April 14th: bring your hacks and talk about them, have a beer, meet fellow nerds. The last time we started with robots, went ahead with a couple of LDAP hacks by veox and cirka, then Vilius and miceuz told about an art installation they’ve just made, MN presented lithium battery hack for a cinema lighting system and Sam wrapped things up with a Python-based mathematical game he wrote.