Waveshare Dual ETH Quad RS485 Base Board (B) for CM4

Description

The CM4-ETH-RS485-BASE-B from Waveshare serves as a robust expansion board specifically engineered for the Raspberry Pi Compute Module 4. Designed for industrial applications, it accommodates a broad 7-36V DC power input, alongside a 5V DC-DC power option via its Type-C interface. This base board is equipped to handle demanding industrial contexts, making it suitable for projects requiring stable and comprehensive connectivity solutions.

Key features include four isolated RS485 interfaces, ensuring reliable and interference-free serial communication crucial for industrial control and monitoring systems. Network connectivity is enhanced with dual Ethernet ports, comprising both a Gigabit and a 100M port, allowing for flexible network configurations or redundancy. For multimedia and imaging tasks, the board provides an HDMI interface supporting 4K@30fps output and two MIPI CSI-2 camera ports, enabling advanced vision applications.

Further expanding its utility, the base board also integrates two USB 2.0 interfaces for peripheral connections, a real-time clock (RTC) with a battery socket, and a MicroSD card socket for CM4 Lite variants. Its comprehensive industrial I/O and robust design make it an excellent choice for developing IoT gateways, industrial automation systems, data acquisition units, and other embedded solutions in challenging operational environments.