From the MAKE Flickr pool(originally)
Assembling Feurig’s open source Serial to USB converter seems a worthwhile way to try your hand at surface-mount soldering. –
The benito board was designed to allow people with intermediate soldering skills to build their own Atmel AT90usb162 based devices. The processor itself is a tqfp and the remaining components are almost exclusively smd 806 parts. While it is not as easy as working with dip components, it is not too difficult to do by hand and the processor is worth it.
Schematic, source, and parts list – Build your own USB to serial device
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