Adding internet access to embedded systems opens up a whole new world of capabilities. For example, a remote data logging system could automatically send data via the internet and be reconfigured - such as to log new types of data or to measure at different intervals - by commands sent over the internet from any computer or device with internet access. Embedded internet and internet appliances are the focus of great attention in the computing industry, as they are seen as the future of computing, but the design of such devices presents many technical challenges.;This book describes how to design, build and program embedded systems with internet access, giving special attention to sensors and actuators which gather data for transmission over the internet or execute commands sent by the internet, It shows how to build sensors and control devices that connect to the "tiny internet interface" (TINI) and explains how to write programs that control them in Java. Several design case histories are given, including weather monitoring stations, communications centres, automation systems, and data acquisitions systems. The authors discuss how these technologies work and where to get detailed specifications, and they provide ideas for the reader to pursue beyond the book. The accompanying CD-ROM includes Java source code for all the applications described in the book, and an electronic version of the text.