Usman ali Butt

An oximeter is a device that measures the amount of oxygen carried by the red blood cells. Blood oxygen level has a certain threshold limit for good health. If the level shots or depreciate the threshold, one might be caught by multiple diseases. Adults and infants are rarely short of oxygen, but oxygen depreciation is…

This tutorial explains how to automate a hand sanitizer bottle. Sanitizers can be found for use at many public places (and especially recently, given the COVID-19 pandemic). However, each press of the cap leaves behind several types of germs on it. One way to avoid this is to automate the bottle so that users never…

Power constraint is a critical consideration undertaken by designers when selecting a microcontroller for an application — particularly with IoT applications where power plays a vital role. IoT nodes are only useful in the field if they last for years or even a decade on a single battery. The race for lower power devices between…

In July 2019, a new world record was set when 24 LoRaWAN gateways simultaneously received a message transmitted by a node and one of the gateways was residing at a distance of 766 kilometers from the node. The previous record was 702 kilometers. The new record is set by a team from the University of…

In recent decades, the increase in demand for low power solutions required the development of new algorithms and clever techniques, which could save energy and guarantee a long-lasting shelf life of a standalone solution powered by batteries. Three key parameters and components of a general electronic solution are the semiconductor, software, and power for operation.…

With the replacement of vacuum tubes by transistors, it became possible to switch between logic states with a minute amount of power consumption and in a relatively smaller space. This article will focus on logic switching. Not much has changed with electrical switching technologies, although there have been some innovations around various techniques to switch…