Comments for Ed's World

Comment on OSGi, Jetty, CometD, Bayeux and Dojo by Ed's World » OSGi, Jetty, CometD, Bayeux and Dojo - EtondeGroup Blog of Web Applications | EtondeGroup Blog of Web Applications

Thu, 15 Dec 2011 20:59:52 +0000

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Comment on Dojo, Comet and Jetty by Ed's World » OSGi, Jetty, CometD, Bayeux and Dojo

Ed's World » OSGi, Jetty, CometD, Bayeux and Dojo — Thu, 15 Dec 2011 16:37:48 +0000

[...] Dojo, Comet and Jetty RSS [...]

Comment on AM Transmitters Arrived by Gregor

Gregor — Tue, 13 Dec 2011 23:20:39 +0000

@Bryan I can second that. Very useful example. Thanks, Ed.

Comment on Dojo, Comet and Jetty by Ed's World » Dojo, Comet and Jetty - EtondeGroup Blog of Web Applications | EtondeGroup Blog of Web Applications

Sat, 10 Dec 2011 06:30:14 +0000

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Comment on How to calculate the average angle of bearings by Ed

Ed — Fri, 25 Nov 2011 11:55:09 +0000

Hi,

To be honest, I did what seemed to work after talking to several mathematical people, so I’m sure there are better ways to get it to work.

I thought it was vector-like, given you can imagine it as moving a radius around a circle, looking at the horizontal and vertical displacement.

Sorry this doesn’t clarify anything!!!

Comment on How to calculate the average angle of bearings by Geoff

Geoff — Fri, 25 Nov 2011 09:45:45 +0000

Hi,

This is an interesting post. Note that:
sin(angle) / cos (angle) = tan(angle)
so you are doing:
atan2( tan(angle) )
I assume the angle is the addition of the two bearings, so
angle = 355 + 5 = 360.

In a calculator, if you did atan(tan(360deg)) you would get 0 deg also. That just relies on the periodic nature of tan (http://www.mathsrevision.net/gcse/pages.php?page=39).

I don’t really see how that amounts to treating the angles/bearings as vectors? I’m not sure also why you use atan2 rather than atan, but I would be interested to hear why if you can remember.

Cheers

Comment on Installing an Acer Revo with Ubuntu & MythTV by Ed

Ed — Sun, 30 Oct 2011 18:16:02 +0000

Hi,

To be honest, I haven’t had the S660 turned on for a while – I got bored of recomplining the kernel each time there was an update. However, a colleague has said the modules are now in the kernel, so it may be easier.

When I did have it set up it was completely stable though – not that that helps you!

Good luck!

Comment on Installing an Acer Revo with Ubuntu & MythTV by Alex

Alex — Sun, 30 Oct 2011 18:13:58 +0000

Hi Ed,
I am wondering how your mythtv installation with the s660 is working. I have basically the same setup an atom with ubuntu, mythtv and the s660 as well as the Nova TD.
My problem is the s660 is not stable. Often the s660 stops responding and only a full reset helps.
Have you ever seen the s660 behave stable?

alex

Comment on AM Transmitters Arrived by Bryan

Bryan — Thu, 27 Oct 2011 09:44:46 +0000

Hi, I think your code for changing the device is wrong. You send the contents of bit3 as the device id, but this is never set. I think you need to get rid of bit3 (it doesn’t appear to be used) and replace a section of code with.

sendPair(hedevice[0]); //MSB
sendPair(hedevice[1]);
sendPair(hedevice[2]);
sendPair(hedevice[3]); //LSB

Other than that it seems to work fine – thanks a million for posting it. It’s worth remembering that the HE wall plugs can accept up to 6 controllers, so you can just pick a random sender code and add this to the plugs (put them into learn mode then get the arduino to repeatedly send “on” commands).

(I had to do this as my remote broke so I can’t retrieve the code in the way you describe).

Comment on Streaming from linux to ipad by Hansi

Hansi — Mon, 17 Oct 2011 19:26:47 +0000

Hi,
simplier: just us the streaming implemented in MPoD/MPaD. Go to “Edit Connection\Connection mode” and choose “On the go”. Then just put your ip- and streaming-port inside (at bottom of “Edit Connection”).