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Despite being more expensive than standard permanent outdoor toilets, portable toilets (Fig. 1) have several significant benefits as these are self-contained and can be placed almost anywhere. These days portable toilets are frequently seen at outdoor areas like construction...
Fastest finger first system are used in school, college and TV contests. The team which presses their push-button switch first is entitled to answer the query. When two or more teams press their push-buttons within a very small time...
Continuous hunting as driven a lot of animal species to extinction and the Government has brought about little change apart from introducing a few laws and conducting a few surveys. But conducting surveys is an exceptionally difficult task, especially...
We often face problem while reading the values of ICs and miniature SMD components, detecting cracks or shorts in tracks in a PCB, or reading a finely-graduated vernier scale. Here is a solution to the problem in the form...
Most people use the side and rear-view mirrors to manoeuvre their cars since a camera installed at the back of the car can be quite expensive. So, today we have undertaken the task of creating a smart back-camera system...
Presented here is a simple circuit for switching your CCTV camera outputs sequentially.It switches four video and audio channels sequentially, one at a time. Circuit and working Fig. 1 shows the circuit diagram of the four-channel video and audio sequencer. It...
In this time when COVID-19 is spreading rapidly, it is essential to maintain social distance and avoid large public gatherings at one place to break the chain of corona infection.But maintaining this is not easy. Many people, knowingly or...
Geofencing is one of the greatest technologies of the 21st century. It has a multitude of applications such as car tracking and parcel location tracking. Here is a more exhaustive list of the applications of geofencing Can be used...
This is a concept DIY of COVID-19 Corona Detection Device that helps to detect the symptoms of COVID-19, so as to help individuals quarantine themselves and practice social distancing. The DIY works by detecting the basic symptoms of the virus,...
Solar streetlights can be easily integrated with a dusk-dawn controller by simply employing a pnp transistor and a few resistors where the solar panel itself works as the sensor. But what about other lighting sources that do not employ...