Speaking of, would someone be able to check how the pins on the mount relate to the USB pinout?
I know the top-left pin (on the mount) is +5V (USB pin 1) and bottom-right is ground (USB pin 4). What I'd like to know which of the other two pogo pins is Data+ and which is Data-
My current DIY solution only uses two pins, but it barely keeps the unit charged. So I wonder if I need the other pins as well so the GPS can signal that it wants more than 0.5A
I have bit the bullet after yet another USB socket failure and got the Edge Explore 2 power power mount option.
I got the Shimano Steps cable which has four bare wires, it recommends that they are wired in two pairs, and I get the feeling this is because they cant stop you mounting the Garmin 180 degs out. This would Imply that 4 of the 5 pins on the mount are for +/- power which leaves the centre one for data +ve maybe
Interesting the power mount contains an LED which glows green when you connect a power source, and flashes green when the Garmin is connected and drawing power. so obviously some other circuitry embedded in there. Interestingly I tried to measure the voltages on the bare pins when connected and drew a blank so does it have some clever "mounted" detection.
The new Explore 2 has a fantastic battery life and I never need to plug into the USB again even to load routes, I'm a very happy boy.
