The Raspberry Pi GPIB Shield is an inexpensive, easily built adapter to connect your GPIB-capable devices to a Raspberry Pi.
Rasperry Pi GPIB Shield V0.4
Connecting GPIB-capable lab equipment to your PC nowadays is mostly a choice between several USB-to-GPIB adapters. If your platform of choice is linux, especially the Raspberry Pi, then you may run into trouble getting some of the proprietary adapters up and running.
The Raspberry Pi shield was created to solve this problem.
The gpib-protocol specifies how to “talk” to a capable measurement device. This includes control line definitions how data is sent using the gpib-handshake.
You can use the gpio-port of any Raspberry Pi. A Raspberry Pi 2 or 3 is recommended to get a mechanically stable unit.
For a quick introduction you can take a look into my bachelors thesis.
The circuit is straightforward, as the handshake is implemented in software.
You can also find the current version of the circuit diagram on github.