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UDPNode: A C++ class for UDP Communication

Posted on 25.08.202525.08.2025 by halherta

A couple of months ago, I decided to pursue few IOT project ideas that could benefit from basic UDP (User Datagram Protocol) communication. The MQTT and CoAP protocols are definitely more robust and secure. But there are some situations where the basic UDP protocol is sufficient. The POSIX C socket API built into Linux is…

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Bit Manipulation in C Part II – Read Modify Write Operations

Posted on 30.07.202519.08.2025 by halherta

This article covers Read Modify Write (RMW) operations. These operations allow the programmer to manipulate one or more bits of interest within a variable (or register), without affecting the state of the rest of the bits in the that variable (or register). In order to understand RMW operations, the reader must have a solid foundation…

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Bit Manipulation in C Part I – Bit Manipulation Basics

Posted on 30.07.202519.08.2025 by halherta

The topic of bit manipulation in C doesn’t seem to get as much attention in many C programming books and study guides. Perhaps because it’s a not used regularly by application developers and system programmers. Knowledge of bit manipulation is however downright critical in the fields of embedded systems, kernel space programming and device drivers…

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