12-point BAS expansion board for Raspberry Pi. Included with Raspberry PI 3. The BASpi I/O board is a 12-point BAS expansion board for Raspberry Pi. The I/O board, plus the firmware files provided by Contemporary Controls turn your Raspberry Pi into a BACnet-networked, Sedona-programmable controller with 6 Universal Inputs and 6 Relay Outputs.All 12 physical I/O points, in addition to 24 Virtual Points are served up over BACnet/IP using Ethernet ..