Sending UDP Packets over an Ethernet Link from Raspberry Pi to Arduino

All I wanted was an easy way to check out my Arduino Ethernet link, but it wouldn’t respond to a ping, and I couldn’t find any sample code that would do what I needed.

Serial Communications on Industrial Shields PLCs

I have found communications can be one of the more challenging aspects of life; serial communications is no exception. This article focuses on Universal Asynchronous Receiver-Transmitter (UART) communications.