this kind of optic fiber is probably only plastic so for a full DIY , you can use also fishing wire with a big power led or an old chistmass tree optic fiber lighted.....
I have already published all the documentation, on my website, GitHub and openhardware.io
For now I leave the node as finished.
SmartHome: Wireless LED RGBW Controller – 00:55— giltesa
@hek The capacitor addition seems to be helping. So far 9 hours and all the values are updating as they should YAY!
I'll continue to monitor but i'm hopeful that this is the solution.