Google’s Glass gets teardown treatment

googleglassGoogle Glass has had its first major teardown treatment with user [catwig] doing the honours and giving a very detailed look at just what goes on inside Google’s eye toy.

It’s an impressive piece of machinery, all powered by a 3.7V/2.1-watt-hour Lithium-ion battery in the ear frame (roughly 570mAh).

In some ways it’s not surprising that Google Glass only runs a dual-core processor – with only a small 570mAh battery to power it, anything more would likely drain the battery too quickly. The chip is Texas Instrument’s popular dual-core Cortex A9 build, the OMAP4430 and it’s accompanied by 16GB of flash storage from Sandisk.

The screen display has a native resolution of 640×360-pixels and according to [catwig], those pixels are one-eighth as large as those on Apple’s Retina-display. Other features including a bone-conduction speaker for sound plus an inertia sensor chip, the InvenSense MPU9150.

While everyone else is talking about the Glass, the MPU9150 chip is interesting in its own right – it’s a SiP (system in a package) chip that combines the three-axis gyroscope and three-axis accelerometer of the MPU6050, along with an AK8975 three-axis compass. It’s the sort of chip that’d make a cracking quadcopter but Google uses it here to handle everything from head to eyelid movements.

You can see a very detailed series of photos of the teardown over at catwig’s website. Even if you’re only moderately interested, it’s a fascinating look at future tech.

The good news is that [catwig] was able to put the whole thing back together in working order – at the expense of some cosmetic bumps and scratches…

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