This simple interface is necessary due to the serious constraints of using such a tiny server. However, it is a simple task to create a web page which serves as a more sophisticated front end to the thermostat. Such a web page can be stored locally and used to access the thermostat as necessary. For an example, click here . This web server implements the SLIP, IP, TCP, and HTTP protocols and delivers a single HTML web page.
Source code is available on-line.