LCD2USB is a open source/open hardware project. The goal of LCD2USB is to connect HD44780 based text LCD displays to various PCs via USB. LCD2USB was meant to be cheap and to be made of easily available parts. It is therefore based on the Atmel AVR Mega8 CPU and does not require any difficult to obtain parts like separate USB controllers and the like. The total cost (without display and pcb) are about 5 to 10 Euros. LCD2USB currently comes with a simple demo application that works under Linux, MacOS X and Windows. LCD2USB is currently supported by lcd4linux (LCD2USB support is built-in), LCD Smartie (requires a seperate driver), and LCDProc (LCD2USB support is currently in the nightly builds). Every now and then i have spare PCBs available. Send me an email if you are interested. LCD2USB makes use of several projects to achieve this goal. LCD2USB is based on: LCD4LINUX, a great framework to use small LCDs with linux, AVR-USB, a pure software implementation of USB for the AVR plattform, USBtiny, another software usb implementation for the AVR, and Peter Fleurys LCD routines for the AVR
http://www.harbaum.org/till/lcd2usb/prototyp.jpg
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