Equivalent to pressing reset button on PC case
echo 1 > /proc/sys/kernel/sysrq echo b > /proc/sysrq-trigger
other commands: https://www.kernel.org/doc/Documentation/sysrq.txt
Cloning iButton using RW1990 and AVR
Ahojte! 🙂
Yesterday arrived my RW1990 keys I had ordered from aliexpress. They look the same as original iButton (DS1990A) but they hide one awesome feature: they are writeable so you can change their Serial Number! This is how I managed to write them white some cheap parts I had at hand. Continue reading Cloning iButton using RW1990 and AVR
My patch made it to the OSCam trunk :)
USB switch for 2 PC under Linux
Hi there!
As you can note from previous blogs, I love to buy strange devices directly from china :). This time I needed to connect one USB device to 2 computers (servers) so i fired up ebay and aliexpress and found this:
http://www.aliexpress.com/item/USB-2-0-Sharing-Switch-Hub-2-PC-to-1-Printer-Scanner-Newrok-Switcher-Wholesale/2037808594.html
The description doesn’t say anything about Linux support, but I thougt: “Come on… how complicated can it be?” Continue reading USB switch for 2 PC under Linux
Cheap USB Skype/VoIP phone protocol discovery
I’ve bought cheap USB handset from eBay to use with my VoIP provider. In Widows it worked good with supplied app which supported few VoIP programs and Skype. Since I use Linux on my desktop, I tried to plug it in. In USB listing it showed up as soundcard and HID device. Continue reading Cheap USB Skype/VoIP phone protocol discovery
My first AVR
Nothing special, just attiny2313, usbasp and some basic functions
OSCam: Cheapest smart card reader
While I was searching for cheapest oscam compatible card reader on e-bay, I found this SIM card reader:
With a price under $3 it is able to read/write SIM cards so I bought one to test if I can use it also for standard decrypt cards reading. Continue reading OSCam: Cheapest smart card reader
PHP: RPC with asymmetric cryptography
Yesterday, I was thinking about a simple way how to issue commands, list files, get files and access database on a remote system. With PHP all these things are simple to do and you don’t need to write TCP server, because it is provided by some HTTP daemon. It is also important that this could do only authenticated user. Next point was, that authenticated user can do anything on remote system and no complicated method implementation is needed on remote system. This might seem less secure but think about ssh… is it not similar? Continue reading PHP: RPC with asymmetric cryptography
Reverse engineering Lenkeng HDMI over IP extender
Short time ago, I was searching for a way how to get HDMI output from camera to PC (and then stream on the Internet). There are PCI-x HDMI input cards on the market, but they cost 100$+. Suddenly, I have found a device, which transmitted HDMI signals over IP network for half of the above price so I took the chance. Specification said something about MJPEG so I thought it might be possible. Continue reading Reverse engineering Lenkeng HDMI over IP extender
Verejna doprava (alebo dolava?)
Urcite uz vsetci netrpezlivo cakate na novy clanok, takze podme na to 🙂 Continue reading Verejna doprava (alebo dolava?)