Icstation 1CH 3V 3.3V Relay Power Switch Module with Optocoupler High Level Trigger for ESP8266 Development Board

hi guys above from strike fun technologies today I have a new relay module to talk about this is actually a single channel 5 full delay module but it's kind of special because you can't complicate it to be active high or active low so there's a mini jump over here just talk about the bots you have five for today and it's back out to three school tamiya not block so you have the normally closed common and only open that's why standard you have a power indicator LED over here then the total we list it as already and the signal input signal and every day is actually optocoupler opto isolated so it's quite safe so what you need to connect is a five-foot to the DC plasti Mina and dc- connect to the ground so I have actually program this maker you know to bring a radiate out of the tin or LED 30 pin 13 and I connect up so just to demonstrate that you can use different kind of logic to activat