Optocoupler relay module, what is an Optocoupler, linear optocoupler - tatanh1983/conchodom GitHub Wiki

An optocoupler, also known as a photocoupler, is an electronic component that interconnects two electrical circuits through a light sensitive optical interface. Optocouplers are isolation components that provide electrical isolation between circuits to en

https://www.futureelectronics.com/c/semiconductors/optoelectronics--isolation-components-optocouplers