Most PC motherboards have hdd activity connector. That is two leads that drive a single led. Voltage varies between 0 - 5 vdc depending on activity. Can the Grove Led Bar v2 module be connected directly to these two pins on the motherboard. There are 4 wires red-black is power 0-5 vdc. The Yellow and white are the single wires. If I power the LED bar and connect yellow to hdd+ on the motherboard and white to hdd- will this work ordo I need to addvaribae resistors. Trying to avoid adding arduino board which I have.Thanks for your input.
Joe