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by bullen
Sat Feb 28, 2015 6:25 pm
Forum: General discussion
Topic: Pebble Time Screen for RPi?
Replies: 4
Views: 783

Pebble Time Screen for RPi?

I don't think the official RPi screen will be e-ink, the pebble time scren has 64 colors and the refresh glitches seems to be improved alot. Any e-ink screens coming up for the pi?
by bullen
Tue Feb 17, 2015 11:16 pm
Forum: Java
Topic: Remote Java programming
Replies: 15
Views: 9674

Re: Remote Java programming

This is what you are looking for: http://www.raspberrypi.org/forums/viewt ... 68#p694568

It's a tiny HTTP server with hot-deploy, I'm using it for everything, but of particular interest to you a COM port radio.
by bullen
Mon Feb 16, 2015 8:02 pm
Forum: General discussion
Topic: Power RPi with RPi?
Replies: 2
Views: 348

Power RPi with RPi?

For my cluster I'm running out of power sockets, how many pi's can you power with one pi 2? Is there some mod you make make to allow for more power?
by bullen
Sat Feb 14, 2015 10:52 am
Forum: Java
Topic: Lightweight Java HTTP Async Server
Replies: 9
Views: 6644

Re: Lightweight Java HTTP app server

Now I have added so that you can hot-deploy to your pi with rupy on projects that use a COM port integration to increase development speed of all your Java hardware projects. Install RXTX on your pi: sudo apt-get install librxtx-java Example code: public class Router extends Daemon.Com { static Daem...
by bullen
Sat Feb 14, 2015 10:48 am
Forum: Java
Topic: RPi 2 performance
Replies: 9
Views: 3767

Re: RPi 2 performance

As completely ignorant in the matter - I though that JVM for ARM (deployed to RPi as well as some other ARM platforms) is already capable of utilising ARM7 instruction set (and its Java extension) when/if available. There is no need for extra 're-compilation' for platform. This was specifically wha...
by bullen
Wed Feb 11, 2015 1:57 pm
Forum: Beginners
Topic: Note re: using RxTx (Java Serial Port Access)
Replies: 4
Views: 3664

Re: Note re: using RxTx (Java Serial Port Access)

Indeed good save!
by bullen
Sun Feb 08, 2015 10:24 am
Forum: Java
Topic: Lightweight Java HTTP Async Server
Replies: 9
Views: 6644

Re: Lightweight Java HTTP app server

Did a benchmark of the rupy cometstream and 6x it is. Almost the same performance as an old atom or a new NUC, but per watt it dominates! Comet Stream 6.500 messages per joule!!! That might just be some kind of world record! ;) Edit: I'm just blown away by this figure. The next best per watt is the ...
by bullen
Fri Feb 06, 2015 5:00 pm
Forum: Java
Topic: RPi 2 performance
Replies: 9
Views: 3767

RPi 2 performance

With the Raspberry Pi 2 is it better to go raspbian or snappy for Java performance?
by bullen
Fri Feb 06, 2015 4:37 pm
Forum: General discussion
Topic: PoE
Replies: 16
Views: 3626

Re: PoE

Ok, well I have written my own async HTTP app server cluster software with 100% read uptime NoSQL database. Please take a look and imagine that there might be other uses for a cluster than "that sort of high speed super computing". Anyhow, I'll only know if it works by trying so no need to argue here.
by bullen
Fri Feb 06, 2015 3:11 pm
Forum: General discussion
Topic: PoE
Replies: 16
Views: 3626

Re: PoE

Ok, so you mean that the processor can do more work than the bus can handle. Either: 1) Your application is doing nothing. 2) Your network protocol is poorly optimized. But I think you really need to experiment and try to see if there is something here or not. My hosting solution http://host.rupy.se...
by bullen
Thu Feb 05, 2015 8:18 pm
Forum: General discussion
Topic: PoE
Replies: 16
Views: 3626

Re: PoE

The thing is; if you added leads from which the power *could* be drawn from the ethernet port at 5V (no additional costs), then *when* the server industry realizes that 48 RPi2 clustered provide way more performance per watt/hardware/maintenance (costs) than any other system out there by a longshot ...
by bullen
Wed Feb 04, 2015 6:50 pm
Forum: General discussion
Topic: PoE
Replies: 16
Views: 3626

Re: PoE

What I meant was that the foundation would connect the ethernet port power so that we can use PoE switches.
by bullen
Wed Feb 04, 2015 4:51 pm
Forum: General discussion
Topic: PoE
Replies: 16
Views: 3626

PoE

Would that be hard to add to the RPi2?

I mean this is perfect for clusters, just need to reduce the cabling!
by bullen
Tue Dec 23, 2014 7:17 pm
Forum: Java
Topic: Lightweight Java HTTP Async Server
Replies: 9
Views: 6644

Re: Lightweight Java HTTP app server

Tutorial, if you have a problem I can answer your specific question.
by bullen
Wed Dec 03, 2014 6:24 pm
Forum: General discussion
Topic: Any news on official Raspberry Display?
Replies: 260
Views: 96937

Re: Any news on official Raspberry Display?

Looking forward to this, but make sure you work together with the Pimoroni team to get a snug case integration with power!
by bullen
Tue Nov 25, 2014 10:26 am
Forum: Java
Topic: Lightweight Java HTTP Async Server
Replies: 9
Views: 6644

Re: Lightweight Java HTTP app server

Now you can build your own HTTP server cluster on many RPi's with this. It also has a cluster NoSQL database!

We have a cheap PaaS ready for deployment, but you can easily build your own too!
by bullen
Sat Apr 26, 2014 5:24 pm
Forum: General discussion
Topic: Serial RF 433MHz
Replies: 3
Views: 1420

Serial RF 433MHz

I have been waiting and searching, but there seems to be no long distance radio transceiver module for the PI on 433MHz? I'm looking for something like "slice of radio" or rpi900.com basically just plug it in and start writing and reading bytes... This one http://shop.pimoroni.com/products/erf-0-1-p...
by bullen
Wed Dec 18, 2013 12:28 am
Forum: Camera board
Topic: low res + high fps
Replies: 6
Views: 1852

Re: low res + high fps

Still no progress on this?
by bullen
Wed Dec 04, 2013 12:09 am
Forum: Java
Topic: JSP Tags in Java
Replies: 3
Views: 1434

Re: JSP Tags in Java

Othervise look at https://code.google.com/p/rupy/downloads/list, the page-0.6.zip download contains the HTML parser and you can just modify it.

Code: Select all

	static final String START = "[[";
	static final String STOP = "]]";
by bullen
Tue Sep 24, 2013 1:19 pm
Forum: Java
Topic: Dropbox Datastore API
Replies: 4
Views: 1463

Re: Dropbox Datastore API

You don't get it, this is db as a service, maybe it exists (seriously I don't think so, at least not for free) but I wan't it this simple, just key/value store in a file structure. This is very awesome. Try running a professional data intensive product on a SD card, it will fail after one month. Wit...
by bullen
Tue Sep 24, 2013 10:40 am
Forum: Java
Topic: Dropbox Datastore API
Replies: 4
Views: 1463

Dropbox Datastore API

Hi, can anyone at the RPi foundation get on the phone with someone at dropbox about this issue: https://forums.dropbox.com/topic.php?id=105837 It's really important since the RPi needs another backing store than the fragile SD card. I'm decompiling as we speak trying to mod the android code to run w...
by bullen
Thu Jul 18, 2013 5:28 am
Forum: General discussion
Topic: Smaller RPi board without ports
Replies: 2
Views: 601

Smaller RPi board without ports

Hi, I'm building a robot, but the RPI is too large, is there any way to obtain a smaller form factor?

Why isn't the RPi designed with a pheriperal board on which the SoC connects?
by bullen
Thu Jul 11, 2013 8:57 am
Forum: Java
Topic: Java for Web Server
Replies: 4
Views: 3041

Re: Java for Web Server

by bullen
Thu Jul 11, 2013 8:56 am
Forum: Java
Topic: Oracle JDK 7u40 EA hardfloat available
Replies: 3
Views: 6888

Re: Oracle JDK 7u40 EA hardfloat available

So is this better in any way than the JDK8 release for serverside stuff, specifically http://rupy.googlecode.com?
by bullen
Fri Jul 05, 2013 7:11 am
Forum: Networking and servers
Topic: Initial connection to mysql server is VERY slow
Replies: 5
Views: 3165

Re: Initial connection to mysql server is VERY slow

The solution is to use the IP instead of the hostname.

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