BASpi I/O is a Raspberry Pi HAT Expansion Board for Building Automation (BACNet)

BACNet is a data communication protocol for Building Automation and Control Networks that has been developed, supported and maintained by ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) Standing Standard Project Committee since 1987, and used as building automation standard in the US, Europe, and more than 30 other countries. It’s used for HVACs, lightings, elevators, fire safety, and other systems used in buildings. It’s also known as ISO 16484-6 standard. I had never heard of it, but this afternoon, I’ve come across Contemporary Controls BASPi I/O, a Raspberry Pi add-on specifically designed for BACNet, and providing 12 physical I/O points including 6 Universal Inputs and 6 Relay Outputs. BASPi I/O specifications and features: BACnet/IP Server – 12 physical points and 24 virtual points BACnet/IP over Ethernet or Wi-Fi Resident Sedona Virtual Machine (SVM) Input/Output — 12-points of physical I/O 6x configurable Universal Inputs: Analog Input, Binary Input, Resistance, Thermistor (10KT2, 10KT3, 20K), Pulse Input (40Hz) 6x Relay Outputs …