iRobot® Create® 3 Hookup Guide for Raspberry Pi®
The iRobot® Create® 3 robot has a USB-C®1 connector implementing a USB 2.0 host capable of 5 V @ 3 A continuous, which can be used to power and communicate with various downstream devices. Here are some hookup examples for Raspberry Pi®2 computers.
Raspberry Pi® 4
Since the Raspberry Pi® 4 has a USB-C® port capable of an OTG connection, a cable with a USB-C® connector on both ends is all that is required. The Raspberry Pi® is pictured in the cargo bay with the large mount, and the Adapter Board is removed from the robot for clarity.
Raspberry Pi® 1-3 Model B
The original Raspberry Pi® through the Raspberry Pi® 3 do not have upstream (device) ports, so it's a little more difficult to connect and power them cleanly. We suggest using a USB-C® hub which includes an integrated USB to Ethernet adapter as the cleanest way to go. It's also possible to power the Raspberry Pi® using the USB-C® port on the Adapter Board with the help of a downstream connection adapter like this one and make the data connection over Wi-Fi.
Raspberry Pi® Zero
This should be the same as the Raspberry Pi® 4. The Micro-USB connector labeled "USB" is an OTG port capable of being an Ethernet Gadget; use a USB Micro B to USB-C® cable to connect it directly to the robot's Adapter Board.
Raspberry Pi® Printable Mounts
The Raspberry Pi® mounting scheme does not match Create® 3's faceplate or cargo bay hole pattern; here are two 3D-printable mounts. The larger mount is more rigid but requires three times as much time to print in comparison to the smaller mount.