szczys writes: Arduino has driven a tidal wave of embedded development over the last decade. But last year a rift formed in the shape of two companies — Arduino LLC and Arduino SRL — who are suing each other over trademark. While that is ongoing, each company is trying to outdo the other in terms of new hardware. Arduino SRL is now focusing on producing connected boards and will soon have several new offerings available. The Uno WiFi is a traditional Arduino with an ESP8266 WiFi chip on board. The Tian has a MIPS processor with 2.4 & 5 GHz WiFi making it a Linux single board computer with support for low level pin driving. And the Lei is somewhere in between the other two and only for the Chinese market (it would need FCC certification to be sold in the US). From the user side the trademark dispute looks like a waste of energy, but if it drives the companies to produce more boards and fight for followers on price and quality that may be the silver lining.