Waveshare Industrial 6-Ch Relay Module for Raspberry Pi Zero, RS485/CAN with Isolated Protections

Switching mains or higher-voltage loads directly from a Raspberry Pi Zero's GPIO pins is a genuine risk without proper isolation, and this module solves that two ways at once: the relay outputs physically switch the external load, while the RS485/CAN communication interface stays electrically isolated from both the load side and, depending on wiring, the controlling board. Six independent channels give enough control points for a real automation task - multiple lights, valves, or motors - from a single compact module sized to sit directly on a Pi Zero. The industrial-grade isolation protections matter specifically because a fault on the switched load side shouldn't be able to propagate back and damage the controlling electronics.