Yesterday I decided to shoot a video showing the way I take to go to Tarrafa Hackerspace by bike. I used a Sony Actioncam HDR-AS15 mounted on the helmet. And this is the result.
Who hasn’t spend a lot of money and time on arcades during childhood? What about build one and play all those games again?
Browsing the web I found that a lot of people are building their own machines, building over a pc running a MAME emulator with a cool front-end. If you google images for ‘arcade cabinet‘ you will be amazed by what people are doing!!
I decided then to build my own, trying to use as much used stuff as possible, like a old computer, old screen and two usb game controllers that were broken but with the electronics hardware in perfect conditions. The cabinet will stay on the hackerspace from my town, TARRAFA HACKERSPACE, so we can set some championships, it will be fun for sure!!!
On this post, I will be giving updates on the progress (not much will be done during university semester, I hope to finish this project on holidays).
The board is well made, and it has everything you need to start developing any kind of project using the famous Atmega8, which is the same µC used by the first Arduino. Actually, you can also use this board with different µC’s such as Atmega168 and Atmega328 (used in Arduino UNO).
The kit have a lot of space to add more components, and a good thing is that the VCC and GND voltage is easily accessed everywhere of the board. On the pictures and the video I posted here, I have connected the output pin PB2 to an resistor, green LED and to the ground, even without soldering the board works great.
JpegMINI is awesome! If you guys haven’t checked this project out you should take a look at it! They have built an amazing jpeg compression algorithm; I even bought the mac app, it’s really good for compressing ≈ 8mb into 3mb pics without loss of quality.
But right now their mac app can only compress files bigger than 2 megapixels, which is quite annoying when you want to compress small files for a website.
You can do that by uploading the pictures for free on their website. The problem is that all pictures are renamed with an annoying _mini.jpg at the end.
So I just created a very small python script to handle this renaming:
So long and thanks for all the fish!!!
PicPlz is going down, I guess that soon they will allow users to download their pictures before all is wiped off their data centers. While we wait, I’ve created a simple Python Script when entering the username you can download all the photo stream.
You get follow the project on GitHub
I needed to calculate the distance between two Geo-Points using PHP.
Using Haversine formula you get to this function, where you enter lat1, long1, lat2, long2 and it will give the distance in Km.
In case you want to show the distance in Miles, simply change the Earth radius to 3956.
Hope it helps someone!
Finally it’s here, my first Open Hardware project, in which I have delayed some years to release due my lack of time to finish it and make it presentable.
For this project I’ve created a Project Page, in which I will be updating in a regular basis.
So I want to invite you to take a look at the
OPEN HARDWARE MOODLAMP PROJECT PAGE.
I was studying last semester in Politecnico di Milano, a great university in Milan, Italy. Anyway, I am taking lots and lots of pictures here (Italy is a beautiful country).
I am saving my pictures on my computer, but WHAT IF something goes wrong with my computer?
So what I am doing is backing up my pictures (also other things as work files) to my NAS SERVER in Brazil during the night, using RSYNC via SSH (Of course it’s an incremental backup, as I have more then 300GB of photos).
On my server I don’t run SSH on the regular port 22. I use, for example the port 223.
rsync -av --update --delete -e 'ssh -p 223' /Users/dansku/MyDocs/Fotografias
Where /Users/dansku/MyDocs/Fotografias is the local dir, and /daniel/SERVER/Backups is the remote dir.
This way, even if my computer is stolen, I know my data is backed up!
Just want to share this cool Association that is being created:
The Open Source Hardware Association is Coming Soon! It will be a non-profit organization (status pending) working to spread the love of open source hardware. We’re working out details, and as soon as we know, you’ll know! Check back at oshwa.org for upcoming news.
They are asking people to fill a survey so they can know which path follow to make the association. You can help them by filling it here: http://www.surveymonkey.com/s/OSHW