Building a motion reactive LED project and all works well on breadboard, replicated to protoboard and experiencing strange power behaviour. Looking for some troubleshooting advice. Should i expect Vin to be able to power entire external circuit (include 30 LED strip) when connected via USB, i.e. acts as a 5v Vout also? This is what happens when connected to a PC and circuit and everything including LED strip works as expected (obviously is supplying enough current). When powering via a USB powerbank (upto 3.0A out) either through the teensy USB or directly on the power rails i get 5V across the entire circuit (good) but led strip doesnt function, same behaviour when connecting Desktop power supply to rails (only drawing 20mA). Doesnt appear to be any shorts anywhere and I'm really not sure whats going on. Any guidance would be appreciated. Thanks