WINGONEER Official Mini Relay Unit DC 3A 30V AC 3A 220V with Triode Driven Grove Port for ESP32 Arduino Micropython KitWINGONEER Official Mini Relay Unit DC 3A 30V AC 3A 220V with Triode Driven Grov

Hi welcome to Robojax . In this video I'm going to show you how you can use this 5 volt relay module for Arduino so you can connect a control a light like this. This is a relay. You can see physical dimensions here. We have three connections here that can be connected to Arduino for control and power purpose we have three terminals here this one the middle one is positive the other side is negative if you can see it here they label it as negative and then the last one is signal. We have ground the middle one is positive which would be connected to 5 volts this will be connected to the power of Arduino and this is a signal where it receives a signal to turn this ON. Now we have an LED here whenever it receives a signal to energize relay to establish that connection this will turn ON indicating that there is signal on this side we have three terminals here and this is normally connected