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About ao2

Hi,

my name is Antonio Ospite: I am a lazy Computer Scientist from Naples in Italy, not in Florida.


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Linux KMS driver for Acer C120

Hans de Goede informs me that he has been working on gm12u320-kms: a new linux kernel driver for the Acer C120 mini projector, and possibly other devices based on the Grain Media GM12U320 USB3 bridge chip.


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Seasonal plots, with gnuplot

Sometimes there is the need to plot some events which have a periodic trend.

Let's consider a seasonal phenomenon; a typical plot may not fully highlight the regularity of the periodic behavior:


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Teclast X98 Air 3G: unbricking a Bay Trail tablet

While I was trying to boot a vanilla linux kernel on the Teclast X98 Air 3G I messed up a bit with the UEFI firmware settings: the battery was not recognized anymore, the tablet was rebooting right after showing the UEFI firmware boot screen, and USB-host was not working either; so no keyboard for accessing the firmware menu to restore the default settings, and no ADB for running flashrom or the Intel FPT to reflash the firmware with.

Teclast X98 Air 3G, internals
Teclast X98 Air 3G, mainboard
ISP with a logic level converter, top
ISP with a logic level converter, angle

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Teclast X98 Air 3G: cheap Intel Bay Trail tablet, getting acquainted

I got a Teclast X98 Air 3G tablet from Aliexpress, it costed 168 € ( with free shipping) and has a high-definition screen and it's an Intel Bay Trail device; so Android, x86 architecture, 2GiB of RAM and 32 GiB of storage on EMMC.

boot logo 1
boot logo 2
Attached files: 

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Prototyping a vocoder with GStreamer

A vocoder is basically a tool to turn any sound into something which can “speak”, some examples can be seen in this Collin's Lab episode about MIDI, or in this classic from the Kraftwerk (the vocoder effect starts at 1:06):

Whether you are planning to ask for a ransom, or joining the Daft Punk, or taking a time travel to the '70s: a vocoder is always handy.


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KITT showing an Applesoft BASIC program

I was watching a Knight Rider episode (namely from Season 3, Episode 1: Knight of the Drones) and I spotted some source code of a program listed by KITT.


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PS3 BD Remote Controller under raspbmc (or XBMC)

Here are some notes about how to use the PS3 BD Remote Controller with raspbmc (raspbmc is an XBMC distribution optimized for the Raspberry Pi).


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JMP-rope, the theory and the software

The mathematical model behind the JMP-rope, as for any rotating POV system, is the polar coordinate system.