Identifying Blue Wire in DIY USB Voltage Inducer
Posted: Fri Mar 18, 2022 10:25 am
I'm going to install a USB Modem and DC-DC step up board inside of a micro computer to create a dedicated DreamPi that is cheaper than currently buying a Raspberry Pi. I'm following along with the diagrams on the following page:
http://www.dc-swat.ru/forum/printthread.php?tid=3671
I think I understand where all of the wires are going except for the blue wire in the picture below:

What is this wire for and where does the other side go? It's clear that the top side goes to the 18v, but the bottom side is a mystery. I'd appreciate any insight from those that have built one of these.
http://www.dc-swat.ru/forum/printthread.php?tid=3671
I think I understand where all of the wires are going except for the blue wire in the picture below:

What is this wire for and where does the other side go? It's clear that the top side goes to the 18v, but the bottom side is a mystery. I'd appreciate any insight from those that have built one of these.