I am recently fiddling with an old Bluetooth receiver to use it as a time source for my Arduino chrondot clock. Please note it’s already been done[wyolum.com] and an interesting graph of Chronodot drift is provided. First of all I decided to get a good look at the NMEA stream coming out of the GPS … Leggi tutto
My Arduino is quite old, and I had to upgrade the firmware to address some issues that arose with serial. Basically I used Windows XP and those resources: http://arduino.cc/en/Hacking/DFUProgramming8U2 but it’s no so verbose, it’s useful as a general introduction. I soldered a 10K resistor like advised, but then I decided to rely on this … Leggi tutto
I recently started experimenting again with Arduino and must say I am having a lot of fun.
I had the idea to implement an RTC clock with arduino and excellent Macetech Chronodot and got myself the needed parts from Adafru.it. As it often turns out with Arduino project, someone already had the same idea (and luckily they used the Chronodot too): before reinventing the wheel a fast google search revealed “An Arduino LCD clock using the ChronoDot RTC”.
Resting the mind in Finale Ligure, a photo by hayha on Flickr.
whitney cloud show, a photo by david haggard on Flickr. Beautiful (not mine)
I had this weird issue recently: I had a simple Ubuntu setup with cryptesetup and swap, and the crypt swap device (say /dev/mapper/mycryptoswap1) keept disappearing.
Caution: fiddling with cryptsetup and disk devices is dangerous for data and OS. I personally made a full backup on a separate disk and then umplugged it to be sure it wouldn’t be involved in any mishap.
Turns out is a little worse that that: Linux is changing the drive devices assignations (eg /dev/sdb /dev/sdg) at every boot under my nose. I did not notice at first because I am using UUIDs, so everything looked fine. Unfortunately my raw partition did not have any UUID. Probably there’s a way to assign an UUID to a general partition, but I didn’t address this issue.
Having the disk changing its letter any time was the reason why the crypttab device wasn’t created a boot. I was lucky: would a partition with valuable data be present in the other disk, it would be overwritten with encrypted swap data.
We successfully trained humans to use password hard to remember but easy for computer to guess. Time will say that Randall Murnoe is a fucking, undervalued Genius.
I had to upgrade a Pangolin Precise to Linux 3.6 to issue a bug on Linux Vs my Logitech mouse. So far I can say: Nvidia_current 295.40 fails to build module in 3.6.0 amd64 (I suspect it would also on i386) Solution: install nvidia-current 304.51 from ubuntu xedgers. Works out of the Box. Vmplayer VMware … Leggi tutto
Finale di Pollina, a photo by hayha on Flickr.
Vernice Fresca, a photo by hayha on Flickr.