| | Re: "Unauthorized charger" peeve
On 2010-02-24, Larry <firstname.lastname@example.org> wrote:
> GeorgeB <email@example.com> wrote in
>> Do you suppose the V3a is trying to draw too much current and then
>> finding the voltage to be too low?
> That's possible. What current is the power supply that works rated for?
>> 3 years ago, I thought 5V USB was USB was USB ... now I know better.
>> Who makes a breakout box with meter testpoints for the 11 total pins?
>> I say 11 for the HTC which has others for audio and the headset
> USB only has 5 connections. Motorola's *******ization is really for our
> own good. I don't think I've ever seen a breakout box, but I'm sure
> they exist.
Micro USB OTG connectors (or Micro-AB connectors) have 11 pins. One
set of pins is used when the device is acting as a host, with an 'A'
connector plugged in, the other is used when the device is acting as a
peripheral, with a 'B' connector plugged in. My Nokia 6700 has one,
which is how the USB port works with both my computer (which the phone
charges from) and a USB headset (which the phone provides power to).
The Nokia N810 also has one.
There are also Mini-AB connectors, which do the same thing but
only have 5 pins. I don't know how those work.