April 4th, 2008

Digital QRP BreadBoard

Digital QRP BreadBoard

The Digital QRP BreadBoard is an evolving home-brew project, serving as a general purpose QRP accessory that can be used on the operating bench and in the radio shack in a variety of ways. Approximately 6″ x 9″ x 1.5″ in size, this project contains a number of peripherals that QRPers find useful in applications around the shack – an LCD, shaft encoder, DDS chip, audio amplifier, RS-232C serial port, general purpose I/O buffers, and a daughterboard expansion port all provide convenient design flexibility.

 Digital QRP BreadBoard: [Link]

February 29th, 2008

U232 Converts RS-232 to USB

U232 Converts RS-232 to USB U232 Converts RS-232 to USB

The U232 module provides conversion between rs-232 and usb interface. Its very versatile and can be added to existing projects. For example you can see in the pictures that the board previously had an RS-232 connector and after the U232 module was soldered the board has USB connectivity features. The USB port on the host device supplies all power for the module. Several models are available for both DB-9 and DB-25 connectors with long and hort footprints.

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