Robust Long Distance MCU Communication - iC-Haus GmbH

Robust Long Distance MCU Communication

The new RS-485 bridge module from iC-Haus enables robust microcontroller communication over long distances of up to 100 m, requiring only one differential pair of wires. (Graphic: iC-Haus GmbH)
Bodenheim, Germany, March 02, 2023: Due to their flexibility and performance, microcontrollers are popular in control, sensor and actuator systems. More and more applications require a reliable exchange of information between controllers over several meters. With increasing cable lengths, the required characteristics of the cable significantly contribute to the overall cost of the system.
At embedded world 2023, iC-Haus presents its single-cable technology BiSS Line and the new bridge module iC-BL as a high-performance solution for microcontroller links, needing only two wires and correcting transmission errors.

Robust bidirectional data transmission with BiSS Line

With its SPI interface and integrated RS-485 transceiver, the iC-BL bridge module enables reliable data transmissions between two microcontrollers in challenging environments with interfering fields (e.g. in construction machinery). Both, supply and data are transmitted in both directions via just two twisted wires. The data exchange is protected by forward error correction (FEC). Even data streams where up to four consecutive bytes are corrupted by a burst error can be recovered. For applications without interfering fields, the error correction reduces the requirements on the transmission medium (e.g. shielding) and costs.

The low-weight BiSS Line protocol and the iC-BL bridge module, which can be used as BiSS Line Master and BiSS Line Slave on both sides of the transmission line, offer a wide range of options for implementing high-performance microcontroller systems.