Lucid Tech sells assembled & tested boards, full kits, and partial kits. For partial kits the builder is responsible for most parts as well as assembly. This allows hobbyists to shop around for the best buys or use parts already on-hand. The projects are well documented and include complete schematics. Although intended for knowledgeable hobbyists, our projects are also being used in technical schools and businesses. Please read the product descriptions carefully and ask about anything you don't understand before placing your order.