The SCSI2Pi project is a more performant further development of PiSCSI, which provides open hardware and software for the Raspberry Pi (except for the Pi 5) in order to emulate SCSI devices. SCSI2Pi can act as a peripheral as well as a computer. Atari computers are especially supported by SCSI2Pi, e.g. by ICD compatibility and the SCSI2Pi client tools for the Atari. SCSI2Pi can even be directly controlled with the Atari.

Raspberry PI Zero WH with PiSCSI board connected to a TT

For SCSI2Pi binary packages are available, so that no time-consuming compilation is rquired. SCSI2Pi emulates several devices at the same time, like hard disks, CD-ROM drives, printers, a DaynaPort network adapter or a realtime clock. This way you can easily add SCSI devices or a memory card reader to your Atari. All emulated devices are ICD compatible, which is important for the MegaSTE or STs/STEs without an ICD compatible host adapter. There is no 1 GB limit for the capacity, and with HDDRIVER up to 8 emulated devices can be used with the MegaSTE's internal host adapter.

More on SCSI2Pi and Atari Computers with TOS
More on SCSI2Pi and Atari Computers with MagiCMac

SCSI2Pi also works with Linux-68k and Atari's System V Release 4 (ASV).

With the SCSI2Pi client tools the Atari can exploit the full SCSI2Pi functionality. Files can be printed via SCSI2Pi, the Pi or SCSI2Pi can be shut down, and a realtime clock with automatic daylight saving time adjustment is available. In addition, you can control SCSI2Pi with the Atari.

With the SCSI Control app multiple PiSCSI boards, the emulated devices, the image files and much more can be managed. The app can also shut down SCSI2Pi/PiSCSI and the Pi.

In the HDDRIVER forum there is a special area on HDDRIVER, the SCSI Control app and the SCSI2Pi client tools.