Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

So you want to control some mains electrical (or lower voltage) item using your phone, perhaps? This single ESP8266 plug-in controls a relay that is built in to the module. An Android app (.apk) ...

This library utilizes any Arduino pins to be used as AD9851 control pins. This will gives you flexibility to use or to reserve any Arduino pins for other functions. The drawback, the frequency update ...

Abstract: A Piping and Instrumentation Diagram (P&ID) is a type of engineering diagram that uses symbols, text, and lines to represent the components and flow of an industrial process. Although used ...

Once raw data has been collected, you need to represent it in a diagram. Two ways of doing this are to use a pie chart or frequency diagram. In a survey, 100 school students were asked to name their ...

For setups that rely on stored water, clear awareness of tank level and water quality is essential. Traditional level ...