Category: Linux

Linux Relay Controller using Netcat for Ethernet and WiFi

Linux users can easily control NCD Ethernet and WiFi relay boards using Netcat.  Netcat provides a convenient method for Linux users to send and receive TCP data over a network port, ideal for sensor monitoring and relay control applications.  Netcat is available for free download, users may read more about it here.  This tutorial will demonstrate the steps necessary to use Netcat for relay control applications. Step 1: Finding the IP Address First you need to know the controller’s IP address. The controller sends out a UDP broadcast on port 13000. You can listen for that broadcast through netcat by

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