5V Relay Board for BeagleBone Black RevC


I have a BeagleBone Black and Shield Relay board 5V, i want to use this shield to control a contactor but the GPIO in BBB are 3.3V, i see an instructable that i can modify with a shunt in the Leds control this relays with 3.3V, do you think it´s enough to do that and safe for my bbb?


Do you have a link to the “instructable”? Some of the ones you find should be called “DESTRUCTABLES”