I came up with this idea in my graceful shutdown thread but thought I should split it up to a separate thread.
The thought was, instead of doing more soldering and breaking out more LEDs and taking up more GPIOs, I had the thought to use the light source from the actual onboard LED status on Powerboost, and expose it through the underside of the case using Fiber Optics.
I just bought some 0.75mm end glow fiber optics spools and I'm going to give it a try.
What I'll do is glue them to Low (red), Charging (yellow), Full (green) statuses and then drill 0.75mm holes and mount them through the underside. I think the super small footprint of them will look prety slick too. I'll keep you updated on how it goes once I receive the Fiber strands and start working on it.
Here's the spools I bought:
http://www.ebay.com/itm/wholesale-5-10p ... 1927053078
And here's the docs on the Powerboost LEDs
There are four onboard LEDs.
The Blue LED sits next to the USB connector socket, and indicates the 5V output power
The Red LED is next to the battery JST port and indicates when the battery voltage is below
3.2VDC (Low Battery Output)
The Yellow LED is next to the microUSB connector and indicates when the battery is being
The Green LED is also next to the microUSB connector and indicates when the battery is
done charging (all full)