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There was a time, probably just 5 years ago, when regular mobile phone providing connectivity at an affordable price while allowing a person to be mobile was considered good enough. The smartphones were considered an object for the rich (due to their prices) and one used to wonder why I need such expensive phones when I can easily afford a cheaper one that serves "the purpose".

We at Zenatix have been developing our IoT systems around Raspberry Pi (RPi) platform.

Power factor is nothing but a representation of reactive power required by the load (froth on the beer). The need for utility to supply reactive power can be eliminated if it is made available at site. Correction capacitors are installed to meet this requirement.

Sensors come in all shapes and sizes and just like anything else in the world, one size does not fit all. It would also be unwise to say that more expensive means more suitable. Before choosing a sensor, one needs to define the purpose that one is expecting it to serve.

Have you ever looked at your electricity bill and wondered why you are being charged for more than your consumption? This problem is often faced by industrial consumers, who are billed on kVAh supplied instead of kWh consumed. Let us first try to understand what these terms mean and what role does power factor play in your electricity consumption.

Climate change is no more a thing of the future, it is no more about making the planet inhabitable for the future generations. It is happening right here, right this moment. Many of us discard the “theory” of climate change pointing towards the extra snowy winters in their towns. A simple explanation to that is that as temperatures rise, more water vapour is held in the atmosphere which leads to more intense rain and snow storms. Duration of cold weather decreases but the intensity can very well increase.

This post is about making an OpenWRT image with USB dongle support. We, as a part of our kit that collects and sends data of energy meters over the net required to use routers in the solution along with the raspberry.