Tag Archives: Blog

Hakology Day 37 : Blog Entry

Good afternoon hakologists, I’ve finally got the LED matrix ‘working’ I’ve managed to find one library that draws correctly to the screen, with a little bit of effort I think I could rewrite it for multiple matrices. Today I’m going to get a quick vblog together then later tonight hopefully record the SDR# video. Then we’ll take a look at multimon-ng and demodulating pager messages.

Need to send a massive shout out to gir, for sending hakology 2 RPi Zeros from the US as I couldnt get any at a reasonable price anywhere in the UK. Ridiculous considering they are made less than 50/60 miles from my house.

Family stuff over, vblog recorded, introduction video for vblog channel recorded, vblog rendering, time to get the kettle on and make a brew, thinking I might have a look at an old netgear router I have, see if I can connect using those new USB2UART boards. If I’m feeling really productive I might even get the sdr# video done.



Hakology Day 35 : Blog Entry

Reflecting on the weekend, have been working on a few projects. One using the max7219 LED matrix driver, which I’m considering writing my own library for as everything i’ve tried seems to fail, I have it working and can address each LED individually but haven’t been able display anything useful ie. fonts or text effects … anyway that’s a work in progress. I turned my hand to configuring a small 1.3″ OLED screen someone donated a while back now I can see it was some kind of addressing issue in the code I initially got it running (there were 2 pixels columns on the far right filled with random bits and a couple of leading pixel columns missing) anyway its working now I noticed the version I was running was from the google code repo and checked github see if the project was still live and found some more recent libraries, installed those and that seems to have remedied the problem.

Managed to sort out a good method for screen capture in gnome3 debian jessie. Was having issues capturing the screen in a format I was able to get in to my editing suite. Inadvertently I found out that debian jessie has built in screencapture/screencast ability. Pressing shift+ctrl+alt+R, a small red dot will appear in a panel near your login/logout  panel to show if you are recording, files are automatically saved to your home videos folder, to stop recording just hit the keyboard shortcut again.

These files happen to be in webm format, I havent yet tried running the webm files through handbrake to see if I can convert them to mp4 as my editing suite doesnt natively support webm and one huge problem with the built in screencast is it only records my desktop and no audio. (Maybe I’m doing something wrong, would be easier to just use the built in screencapture)

So eventually my final solution was to record using kazam to mp4, this captured the video + audio, was even hoping I wouldnt have to transcode it again, but still the default format output by kazam isnt compatible with vegas, I then ran the files through handbrake and imported them and everything seems ok … now all the audio syncs with the video perfectly.

Its a bit of a mess/bodge job but it works, maybe if I get some time in future I might have a look see if its possible to edit the default screencast settings to capture audio+video and output to a compatible format preferably mp4.

NB. The default screen recorder only allows you to record for 30 seconds use the following line in terminal to change the maximum record time.
gsettings set org.gnome.settings-daemon.plugins.media-keys max-screencast-length 45

Hakology Day 19 : Blog Entry

Nice hot brew and to call my ISP and figure out why their automated system hasnt automated adding and configuring the website I registered yesterday, meh, I bet the support line isnt open till 9.

So I logged a ticket earlier, checked back at 11 for an update, but nothing. In the process though I found a bug on my ISPs management interface and have just reported it. Nothing like a good vulnerability to start the day. Think they’ll sort the hosting out this afternoon. 🙂

Just getting some advice on responsible disclosure from the 2600 bunch. Cant wait to do a little write up on what exactly was happening and how I came across it. A little bit gutted they don’t have an active bug bounty program.

Well fun over for the morning, back to preparing notes and research. I say research … I’m currently working on some game hacking lol which might involve some impromptu gaming. All the notes for the next hakology video are ready, looking for some new projects and interesting stuff for you lot.

Intel Pentium A80502133 SY022 92/93

Intel Pentium A80502133 SY022 92/93 L7091608-0303 ICOMP 2 #=111

Pic of the day today goes to … one of my old processors I’m trying to find my old DX33 but this is the oldest one I could find for the moment. 133Mhz of joy back in the day.

HACKS!!!! Hacks a plenty today. Just hacked my first game oh yea! Working on something that’s not been looked at before which is also fun 😀
In case you were wondering.

Enjoying a coffee and reflecting on the day.


Hakology Day 15 : Blog Entry

Wow two weeks, time flies when you’re having fun. Knuckling down again today hopefully somewhere near to completing the gqrx video. Spent some of the weekend teaching a friend python and the other half modding my retropie. After spending a few days working on it, its coming together quite nicely. Loads of classics, managed to setup dosbox and test some ports. NB. Some ports seem to FUBAR the card / os / boot. Select carefully when installing them. Once you have a good working SD card F£$%ING image it (*as regularly as possible whilst building your retropie install*) I’ve had to start from scratch a few times, once is annoying but on your fifth attempt it starts to get a little frustrating.
Right coffee and breakfast time.

Ended up having to help a friend out earlier, but back to the computing now. Looks like gqrx is even easier to setup in linux than in windows that makes a nice change.

Notes written and I think i’ve worked out how to record the linux installs. Even managed to get the RTLSDR working in vitual box, but its bit late to start recording.

Hakology Day 13 : Blog Entry

Had a really chilled out day today, think I deserve one after the last twelve days! Visited a friends and took the RPi3 loaded with retropie and about twenty games, not the best games but a selection of a few good old ones. Spent the entirety of the evening chatting about old computers and consoles, by the time I was leaving they wanted me to order another for them, they were that impressed.

Just going to spend a few hours on the SDR and have a quick blast on steam. Hope you lot have a wicked weekend, having fun, doing all the hacks, will be back blogging tomorrow. Peace.

Heavily modding the retropie install.

Hakology Day 12 : Blog Entry

Kettle is on. Coffee to be made. So day twelve begins.

Tunes turned to 11 … its Friday!
Operation pre-weekend tidy up has begun.

Slow start, written up all the notes for the SDR# tutorial, might have a go at recording it later, need to clear some space in the garage for some new equipment arriving soon.

Just had a little jam on my drums .. its been way too long. Great warm up for some FPS.

Right time to do something productive.

Uploading SDR# tutorial, writing up notes in to a new post.


Really quick video showing you how to install and setup SDR# under windows.
Moving on to linux and gqrx next.




Hakology Day 11 : Blog Entry

Just doing some RL stuff will be on this evening. SD card for RPi3 has arrived and whiteboard pens. Multimon-ng running on linux logging data. 🙂

Munching food just about to get down to business.

-SDR# notes / audio / video
-FLEX in multimon-ng
-Test RPi3 (with retropie of course)
-Check corsair ticket.
-Audio working on RPi3 HDMI

Whoot! looks like corsair have updated the ticket. Awaiting RMA confirmation swapping this brown mx for a new spangly red mx keyboard hopefully. That would be most awesome.

Distracted by the internet again! … also reluctant to stop logging POCSAG messages … but I need the dongle.

Rendering vblog

Looking at demodulating FLEX using multimon-ng but IDK if I have the latest version compiled. Time for some updates.

RPi3B vs RPiB there is no comparison, first impressions very impressed!

RPi3 still updating & uploading vblog.



Rebuilt and installed latest version of multimon-ng. Now have FLEX messages demodulating whoot!

Audio working on RPi3 Whoot!!! 😀

Ready to record SDR# tutorial tomorrow.
On mumble with luc, hexon and gir.
Signing off for today, its been fun. 🙂

Worth an update thank you gir for offering to send a RPi zero for hakology to have a play with … can’t wait 😀

Thanks hexon been after this link for a long time … http://playdosgamesonline.com
Ran by the creator of textfiles.com

Hakology Day 9 : Blog Entry

So it begins, late night last night, got the SDR working under windows. Todays goals, get the SDR working under linux and gqrx, look at what I managed to capture in the log and start a video showing how to setup SDR#.

Really don’t want to stop logging messages lol, but I suppose its time to start making notes. Once I can get this running on the RPi ill leave it logging 24/7 for a while so I can analyse the data. Still lots of data being sent that shouldn’t be, names, phone numbers, address information, IP addresses, email addresses, URLs … and I’m sure if I log for long enough the obligatory username and password.

So I can’t show or share any of the data I’m collecting. Hibby just pointed me to (Legal stuff) … even though I can’t share the data I can show you how to demodulate the signals yourself.

Written up notes for SDR# installation.

Executing operation tidy up for recording later also doing a few other chores.

Still tidying 🙁 b/c I’m a messy bugger.

Random picture for today …
Since I’m working on radio stuff here’s my baofeng handset its the uv-5r, a great starting handset for people looking to get in to HAM radio and start learning. I bought one relatively cheap on ebay around £20, before I got my licence so I could scan and listen a little. I’ve some other scanners and sets but ill save those for another day.

meh RL … need to script my house work or hack together some sort of roomba capable of washing up and making tea/coffee on demand.

Chilling out time for a coffee and some food. BBL

A few pages of notes written and a rough idea for an introduction to SDR. Time for a brew and to record / talk through the audio. Will report back in a while.

Useful links:

Captured a little extra audio for the hakology introduction too.

Sleep required.

Woke up after a few hours sleep been doing a little radio research, too early to start the next blog entry, too late to be editing this one hmmm.
No vblog for day nine either will have to make up for it later.

Hakology Day 8 : Blog Entry

Good afternoon hakologists. Late start but lots to do.

Posted ebay stuff, bills to pay, boring stuff. Couple of support calls to make. Will be on soon though.

The amount of profit water, gas, and electricity companies make you’d think they’d have more people staffing the phones. Especially when everyone uses mobiles these days. I hate online payment services much prefer top up cards or direct payment. Finally got through and turns out I’m ahead with my payments whoot whoot. Only one more call to make.

Finally done with all the menial stuff. Time to get busy.

Whiteboard pens ordered, need to login to the corsair portal and check progress on that ticket.

Had a friend over for a while played a little doom4 and insurgency. Finally unlocked the BFG on doom, whoot! Hopefully not too far away from completing it on campaign mode.

Reading up on FSK (frequency shift keying) and POCSAG. Managed to get SDR# working with PDW and virtual cable for the first time. Now logging messages and noting frequencies for a tutorial.

Rendering vlog preparing to setup multimon-ng and rtl-fm.



Time for some sleeps.

Hakology Day 7 : Blog Entry

Good morning hakologists, the early bird gets the worm. Drinking coffee and slowly waking up might write show notes up from last night if I get time.

Well an interesting morning went carbooting, didn’t grab anything techy, just a few air tools, a tool box, a couple of books and its official hakology has a whiteboard!!!!OMG!

Time for a rest spent most of the afternoon catching up with an old friend. Lack of sleep is not good though.

Caffeine time.

Rendering VBLOG, watching deep digger dan.