Making 5 Channel Relay Module On Double Layer PCB #electrifycircuit #relaymodulecircuit #relaymodule #arduinoproject #arduino #relay #newvideo #2022 #pcb #pcbdesign #easyeda H ello Friend, In this video, First, we soldering on zero PCB and check it works perfectly and then we design double layer PCB in PCB design software then we order and after we get PCB's and mount all components on PCB "5 channel relay module is ready" Pin details The relay module consists of six pins as a normally open pin, normally closed, common, signal, Vcc, and ground pins. Signal Pin : It is used to control the relay. This pin can be active low or active high. In the case of active low, the relay will activate when we apply an active low signal to the signal pin. On the contrary, in the case of an active high, the relay will activate when we apply an active high signal to the signal pin. But usually, these modules work on an active high signal. This signal will energize the rela