AC DC AC DC AC DC AC DC

by @edent | # # # | 5 comments | Read ~1,283 times.

My solar panels deliver pure Direct Current electricity into my house. All my house has Alternating Current circuits. Therefore, I need an inverter to change the DC to AC. This is inefficient. Most of the electronic devices I own are powered by DC. So I plug little wall-warts into the AC sockets to convert back…

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Tech Review – Sabrent rotating USB Hub

by @edent | # # # | Read ~283 times.

As much as I love my MacBook, 2 USB ports just isn’t enough! Between phone charging, memory sticks and a keyboard and mouse, I’m sick of swapping cables in and out of ports. I wanted a USB hub which didn’t have a trailing wire (one more thing to get tangled or lost) and would fit…

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Will Wireless Power Make The EU's Charging Standard Obsolete?

by @edent | # # | 2 comments | Read ~1,377 times.

I’m a big fan of the EU. For all its flaws, it has kept the peace for decades. Not only does it prevent physical wars – but it reduces the harm caused by companies warring against each other. Like most legislatures, it works on glacial timelines. Not only tackling the problems of the past, but…

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USB Cables, Lightning Ports, and Foreskins

by @edent | # # # | Read ~608 times.

What does the design of cables tell us about the men who invented them? Computer designers often strictly gender the components they create. The most obvious example is the motherboard – the central hub of the computer from which all electronic life descends. As well as circuit boards (often called daughter-boards) – cables are also…

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Controlling Android Using A MakeyMakey

by @edent | # # # # | 3 comments | Read ~1,497 times.

I recently got a MakeyMakey. It’s a sort of ersatz USB keyboard that can be plugged into anything electrically conductive. I blogged about using it to control my Raspberry Pi using fruit and veg. I also blogged about controlling Android using a USB keyboard and mouse via a USB OTG cable. Hang on… the MakeyMakey…

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Micro USB-OTG for Android for less than a quid!

by @edent | # # # | 2 comments | Read ~1,231 times.

After posting about using the Galaxy Note II for a full day of work, someone asked me why I didn’t just plug in a proper keyboard and mouse to it. To be honest, I’d never even considered that as a possibility! In order to plug in USB peripherals to an Android device, you’ll need a…

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Smuggling USB Sticks

by @edent | # # # # | 23 comments | Read ~31,614 times.

“This Is Not A Film” by Iranian director Jafar Panahi, who is under house arrest in his country for alleged “propaganda against the regime,” will be screened under the Free Jafar Panahi Program of the 13th Cinemanila. The film was smuggled from Iran in a Flash-Drive hidden inside a cake to Cannes for screening a…

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3G Internet on Raspberry Pi – Success!

by @edent | # # # # # # | 142 comments | Read ~248,563 times.

This is a bit of a brain dump of how I got a 3G USB dongle working on the Raspberry Pi. Following on from getting the Raspberry Pi to send SMS. That’s The Power Of Love The first thing to say is use a powered USB hub! I had lots of problems getting the modem…

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Universal Power Supplies

by @edent | # # # # | 4 comments | Read ~200 times.

In 1998, Douglas Adams wrote a essay about the de facto Universal Power Supply – the in-car cigarette lighter. He was half right. We’ve settled on USB as the standard  – simply because it’s ubiquitous. A few days ago, the ITU finally caught up with the rest of the world and endorsed micro-usb as the…

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