I2C From Your VGA Port

Breakout board for VGA to I2C

VGA, DVI, and HDMI ports use Display Data Channel (DDC) to communicate with connected displays. This allows displays to be plug and play. However, DDC is based on I2C, which is used in all kinds of electronics. To take advantage of this I2C port on nearly every computer, [Josef] built a VGA to I2C breakout.

This breakout is based on an older article about building a $0.25 I2C adapter. This adapter hijacks specific lines from the video port, and convinces the kernel it’s a standard I2C device. Once this is done, applications such as i2c-tools can be used to interact with the port.

[Josef] decided to go for overkill with this project. By putting an ATmega328 on the board, control for GPIOs and LEDs could be added. Level shifters for I2C were added so it can be used with lower voltage devices. The end product is an I2C adapter, GPIOs, and LEDs that can be controlled directly from the Linux kernel through an unused video port.

More Counterfeit Apple Chargers Than You Can Shake An iPod At

Counterfeit Apple Charger

Phones, MP3 players, designer bags, artwork, money…. anything with value will bring out the counterfeiters looking to make a quick buck. Sometimes the product being counterfeited isn’t even necessarily expensive. For example, an Apple iPad Charger. [Ken Shirriff] got a hold of a counterfeit iPad Charger, took it apart, and did some testing.

So why would someone buy a counterfeit product? To save some money! The counterfeits are usually cheaper to reel the potential buyer in thinking they are getting a deal. In this case, the Apple product costs $19 and the knock-off is $3, that’s a huge difference.

[Read more...]

Xbox One Headset 2.5 mm Plug Adapter

Xbox One internal adapter

In all of Microsoft’s grand wisdom they found it necessary to make the new Xbox One headset adapter without a standard 2.5 mm headset jack. People have invested great amounts of money in quality headsets for previous game platforms that now cannot jack into the Xbox One controllers. This may seem like a déjà vu hack from a week ago but it is different and adds more solutions for the annoying Xbox One headset compatibility problem.

[Jon Senkiw] A.K.A [Xandrel] wasn’t having any of this Microsoft nonsense so he cracked open the headset adapter case that plugs into the Xbox One controller. He photographed the PCB and wiring and realized he could fit a 2.5 mm headset jack from an old donor cellphone into the case. A dap of hot glue, some AWG 30 jumper wires and a bit of plastic trimming was all it took to get a jack inside the headset adapter just the way Microsoft should have done from the factory.

Previously when [octanechicken] added a 2.5 mm female phone adapter at the end of the cable he did not connect the black wire to anything being it was the 2nd side of a push-pull speaker. However, from looking at [Jon’s] photos he connected the speaker output wire to a solder pad on the PCB where the black wire originally connected, marked HPL, and he had nothing connected to the HPR pad. This seemed to work for [Jon] just fine, but is the opposite of what [octanechicken] did last week when he connected the blue wire to the speaker output which would have traced back to the HPR pad on the PCB.

This hack makes these controllers backwards compatible without too much issue being reported. If you have issues please report here or on [Jon’s] SE7ENSINS thread. He has also made comments on the thread that he is willing to help mod headsets, so if you’re not able to hack this yourself [Jon] might be willing to help.

2.5 mm Jack Adapter for the Xbox One Headset

Xbox adapter One FYSEGRXHO7XQFGE

As most everyone knows the Xbox One came out last week and if you were one of the lucky few to get one you might have noticed the headset is quite uncomfortable and covers only one ear. [octanechicken] has a possible adapter solution that lets you plug-in an older more comfortable chat headset like a Turtle Beach. It is being reported as a functional hack by others in the comments; however it may still be questionable. We say questionable because the first release of this Instructable clearly had a flaw in the wiring, but updated text seems to have fixed that problem. Using a female 2.5 mm stereo inline jack [octanechicken] was able to get the Xbox One headset controller to work with older Xbox 360 chat headsets having a male 2.5 mm plug.

The photos on the instructable are still incorrect so following the text instructions one simply unsolders the wires from within the ear piece and then solders the white wire to the tip connector, blue wire to the middle ring connector and the bare wire to the rear sleeve connector of the female 2.5 mm stereo inline jack. Remember to leave the black wire disconnected and covered with a bit of tape. If you cut the wires instead of unsoldering them, remember to scrape any varnish off before soldering. But what about that black wire?

[Read more...]

Fail of the Week: How a Cheap USB AC Adapter Might Indirectly Burn Your House Down

fotw-reflow-controller

This Fail of the Week will remind our readers that every project they make, no matter how small they might be, may have big consequences if something goes wrong. Shown in the picture above is an oven that [Kevin] tweaked to perform reflow soldering. The story is he had just moved into a new place a few weeks ago and needed to make a new batch of boards. As he had cycled this oven many times, he was confident enough to leave the room to answer a few emails. A few minutes later, he had the unfortunate experience of smelling something burning as well as discovering white smoke invading his place.

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Raspberry Pi foundation looks at counterfeit Apple power supplies

The Raspberry Pi foundation is in a somewhat unique position. They always test the units that get returned to them in hopes that they can improve the design. They often request that the power supply also be sent back with the RPi unit, as we know the board will not work well if the PSU can’t source enough current. And so they’ve been able to get a look at several counterfeit iPhone chargers. This is not one of the recommended ways to power the RPi, but their ability to collect failed hardware means that they have identified three different fakes on the market.

Seen here is a genuine Apple product on the left. The others are fake, with the easiest way of spotting them being the shiny chrome plug connectors. The genuine part has a matte finish on the connectors. There is also a difference in the chamfering, and even a variation on the orientation of the USB port on some of them. Unfortunately we don’t get a look inside, which is what we really wanted. But you can see in the video after the break that weighing the adapter will also give it away as a fake, showing that the components within probably vary quite a bit. This reminds us of some other fake PSUs that have been exposed.

[Read more...]

Lens adapter from a plastic soda bottle

This lens adapter makes a lot of sense if you’re looking to interface with cameras that don’t have an in-built mounting option. It uses the cap and threaded neck from a soda bottle (translated) to make the lens adjustable and removable.

In the past we’ve seen this hack using a lens cap with a hole drilled in it as the mounting bracket. But that’s only useful if the lens you’ve chosen actually has a cap to use. This method lets you cut the top off of a the soda cap and mount it on the camera. Now each lens can be affixed to the threaded neck of the bottle, allowing for some adjustment of the focal point by screwing the add-on in or out.

Obviously this would work well for macro or fish-eye lenses. But there’s all kinds of other options out there like adding a microscope lens adapter, or actually attaching quality optics to your device.

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