what is LPWAN ?

A lot of buzz nowadays around Lora, sigfox, NB-IOT and other LPWAN based technologies. this short post is about a basic introduction on the LPWAN technologies  LPWAN means low power wide area network LPWAN technology is perfectly suited for connecting devices that need to send small amounts of data over a long range, while maintaining...

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Callgraph generation using gcc, egypt & graphviz

In this post, we will see how to use gcc, egypt & graphviz to generate call graphs of any C-based source code / multiple source codes. This technique will be helpful if you are working on legacy code and want to have a view of the code architecture at first.Among the three tools mentioned above, GCC is generally pre-installed in Linux. So You need...

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