sda12 is a package of software for working with the B&B Electronics 485SDA12 RS-485 analog and digital data acquisition device.

The software is written in C++ and works on Linux (it probably has some dependencies on ideosyncrasies of Linux RS-232 ports but is probably fairly easy to port anywhere).

The package consists of these parts:

• libsda12: A C++ programming library for accessing a 485SDA12 device. This library essentially just translates between the 485SDA12 command language and C++.
• sda12: A command-line program to issue a command to a 485SDA12 device. See sda12.html
• sda12d: A program to drive an XML-RPC server that accesses one or more 485SDA12 devices on an RS-485 bus. So you can read voltages over the Internet. See sda12d.html

You can download the code from here.

The current release was released in February 2006.

sda12 is distributed and maintained by Bryan Henderson, who is also a daily user of it. (bryanh@giraffe-data.com).