USB power station for projects

Power station for all of my USB needs wants and desires.

This blog is about the power station that took about 3 hours of assembly and costs under $10 by the time everything is said and done. Sometimes these are called “Dumb USB” as they don’t behave like a USB hub but just the basics such as power flow and that’s it.

As you know I play with a lot of devices that require 5dvc. Simply go through my guides and blog and you’ll see that the quality of the power supply can sometimes make or break whatever project that I’m working on . Since I had a lot of parts from the many projects I have done I decided to make a USB power station for all of my charging needs. Something that can easily deliver 3amps while still maintaining the voltage at around 5vdc (I have it set for 5.10vdc to anticipate voltage drop under load and it’s where a lot of cel-phone chargers sit at).

More below.

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Ouya USB Speed Test – Partitions

Testing the Ouya USB ports.

Ouya USB is great really! It gives the Ouya extra space to store games, ROMs, pictures, practicly everything that you would otherwise have problems with within the confines of estimated 3.2GB of free space that is on internal memory because the Android OS is taking up over half of the space! However, one of the annoyances that people do complain about is how long it takes to scan games. A lot of this has to do with the quality of USB thumbdrive that you are using. But could it be something more? Could it be the way that our drive is formatted that is slowing down the Ouya? What I am talking about is partitioning your USB Drive to something other then the normality in order to attain stability and speed out from your Ouys USB device.

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Raspberry Pi – CGMiner – Bitcoin adventures.

Raspberry Pi with CGMiner making the bitcoins.

My raspberry Pi runs almost 24/7 with some of the projects that I have done in the past such as OpenSIM and installing Airplay onto it so that I can send music to the amplifier to my living room and even running some P2P programs to get my latest linux distros faster. Because it runs on a 24/7 basis  that means that I’m pissing 3 watts of power non-stop. I decided to out my Pi to work on getting me bitcoin currency.

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Ouya Support – OTG Cable.

The Android OS that Ouya uses states that it is OTG compatible however when I use a OTG Cable in the secondary debug port of the Ouya I get nothing!

Above is the pin-out schematic of that an OTG cable (On the Go) looks like. The major difference is pins 4 and 5 in the mini-USB are bridged to let android based smart phones know that you are not plugging in a data cable for your android OS to transmit data from your android to a destination device like a your PC. But you are in fact pulling data from a device to your android such as a keyboard or USB thumb drive.

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Ouya Support – No USB Device

No USB device -It does not recognize my USB device when I plugged it in!

A no USB device issue is when you plug something in and absolutely nothing happens! Certain keyboards keyboards may have to have the Ouya hard-booted in order for them to show up. This is a fault once again in Android in general, not just version 4.1!  Our Ouya’s from time to time even when using my non-powered USB hub. Put the Ouya in sleep mode. unplug it. And plug your keyboard in. and then plug the power back into your Ouya. Upon bootloader it should activate your keyboard.

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