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 PCB was planed for Sainsmart 4-Channel 5V Relay Module. It is alss possible to measure the current if ACS712 is connected to the prepared header. ACS Generic male header - 3 pins pin spacing ...

Abstract: High thermal and electrical stress, over a period of time tends to deteriorate the health of power electronic switches. Being a key element in any high-power converter systems, power ...

Abstract: Paper aims at calculation of numerical distance relay parameters like Z1, Z2, Z3, percentage residual compensation, etc. Calculation of parameters is applied and compared to a 400 kV single ...