New Product: p5USB Hub

**justchat_1** · 02-08-2010, 05:13 PM

Originally Posted by mfoxworthy

I totally get it if it's for fun. Hats off to you BTW for finding your own solution, great work. I am just more intrigued with the software and the communications portion of my project and this just seemed too trivial of an item to spend any time on. Like I said, if you are just bored and I'll add, a hobbyist, knock your socks off. I just wasn't sure why people were baggin' on the guys for charging $85. I'll bet potatoes to dollars that your $14 solution doesn't have the same features; not that it needs them necessarily.

Actually it has more...I needed a 7 port hub so I got a $5 7port hub off ebay (which included support for the charging protocol that this device lacks) and just put together the 3amp power supply. My point was just that those that could do this on their own would see this as a huge waste of money, but had this been half the price it would have gotten a lot more attention ($10 markup instead of $50) because then its more worthwhile then spending the time.

**Shmoove** · 02-21-2010, 11:16 AM

I'm just wondering since I have to use the AXXESS CHTO-03 to tap into the factory amp in my Jeep, on the axxess harness itself is a 12v line that is used to power up a HU. Since I'm not using a HU can I use that 12v line to power my P5USB ? I planned on placing it where the radio used to be since there is tons of room in there and easy access...

Thanks

**TheLandYacht** · 03-19-2010, 02:03 PM

Originally Posted by malcom2073

Seconded. Writing a power controller for something like this with a $4 micro is a matter of a couple hours (at the most) of work. That includes testing and debugging.

And there-in lies the rub.

So. Someone said you can put this together for ~$20 in component cost. You say programming the micro should take a couple of hours. Then there's the matter of physical build of the board (whatever configuration you end up coming up with). How much time does that take? Let's say an hour for giggles.

Now here's the real kicker of a question. How much is your time worth to you? I know many professionals who won't take a job for under $40/hour. That blows the price right out of the water immediately. Your $20 (in components) hub now costs somewhere closer to $140 (counting an arbitrary $40/hour for your time).

I don't know about anyone else, but $65 is quite a cheap price for 3 hours of my time.

**swordfishunter** · 03-30-2010, 01:29 PM

does this work w/o the accesory wire attached? cos i've forgot to put it on to the car.

**Fiberoptic** · 03-30-2010, 01:32 PM

Originally Posted by swordfishunter

does this work w/o the accesory wire attached? cos i've forgot to put it on to the car.

Check the manual, there are quite a few flexible jumper positions to allow for many configurations.

**swordfishunter** · 03-30-2010, 01:34 PM

erm.. where's the manual?

**Fiberoptic** · 03-30-2010, 02:10 PM

Originally Posted by swordfishunter

erm.. where's the manual?

We have a video : [media]http://vimeo.com/5575602[/media]

at 2:30 seconds, goce talks about power on / off options.

A product brief is also here.
http://store.mp3car.com/ProductDetai...5&Show=ExtInfo

There are no other documents available other than what is on the link above. Sorry for the confusion.

**tongputer** · 04-19-2010, 10:01 PM

Originally Posted by Fiberoptic

We have a video : [media]http://vimeo.com/5575602[/media]

at 2:30 seconds, goce talks about power on / off options.

A product brief is also here.
http://store.mp3car.com/ProductDetai...5&Show=ExtInfo

There are no other documents available other than what is on the link above. Sorry for the confusion.

yea thats a great video but its not really a manual...

my question is, why do i need a ACC connection if the hub can power its self on when the computer comes on?

can the hub be powered only off of an ACC connection? heres why: for one i am going to be running this hub in my center consul and its very cumbersome to try and run a constant 12v to that area. while i already have a 12v ACC connection right there for my cigarette lighter.

one other thought is, why on god earth would you put the upstream USB connection on the same side as the downstream? Now i am going to have to run a USB cable off the fron and wrap it around back underneath the hub. seems like the upstream would have been better to have on the opposite side or even one of the other sides would have been ok... just a thought.