This Arduino sketch demonstrates how to control a relay using a soil moisture sensor and two potentiometers to set the minimum and maximum thresholds for when the relay should turn on or off. The ...

A novel variable inductor using a bridge circuit is proposed. Because of a bypass switch MOSFET placed at a balance point, the effect of the switch resistance which is a penalty of the variable ...

An equivalent circuit model of an ultra-thin metamaterial absorber comprising a square-ring-shaped frequency selective surface (FSS) is presented. The model can be considered as series RLC resonators ...

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We report a highly sensitive electrochemical sensor for the detection of Hg2+ ions in aqueous solution by using a thymine (T)-rich, mercury-specific oligonucleotide (MSO) probe and gold nanoparticles ...

Since the 1960s, levodopa (LDA) has been the standard drug for treating of Parkinson’s disease. In this study, a novel benzothiadiazole-based conjugated microporous polymer-coated graphene ...