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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ARM Cortex-M0 : Introduction

Well we designers come to a point when we want to go to the next level of embedded designing and we start to think about ARM based microcontrollers. So what is ARM ? Actually ARM is a processor and the processor core is  sold by the company also named ARM to different vendors like STM , Texas Instruments , Atmel and so on . So these vendors...

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Event Driven Embedded Programming

Introduction I guess most of us as beginners in embedded systems programming in C++, probably start writing firmware with a super loop like architecture where all our statements/function calls reside in the main loop  we start including arduino like libraries  we create global objects & start using the objects in the main loop.   being a bit more mature & in order...

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