Comments for Brain Dump http://cheshirekow.com/blog A place to note and share things Tue, 20 Jul 2010 01:59:44 -0400 http://wordpress.org/?v=2.8.4 hourly 1 Comment on In-Place Matrix Transpose by Rhys Ulerich http://cheshirekow.com/blog/?p=4#comment-199 Rhys Ulerich Tue, 20 Jul 2010 01:59:44 +0000 http://cheshirekow.com/blog/?p=4#comment-199 FFTW includes this capability for square and non-square matrices, and it uses smart algorithms in either case. I wrote up the details at http://agentzlerich.blogspot.com/2010/01/using-fftw-for-in-place-matrix.html FFTW includes this capability for square and non-square matrices, and it uses smart algorithms in either case. I wrote up the details at http://agentzlerich.blogspot.com/2010/01/using-fftw-for-in-place-matrix.html

]]> Comment on TxDuino: Custom PC Controlled RC Transmitter by cheshirekow http://cheshirekow.com/blog/?p=236#comment-165 cheshirekow Wed, 05 May 2010 16:25:45 +0000 http://cheshirekow.com/blog/?p=236#comment-165 Hey Tom, The arduino can be used through the transmitters trainer port, at least on some models (i.e. ones that use a PPM signal from the trainer port). I believe I saw a project on the arduino forums that did just that. You could (possibly) do a simpler code like you suggested, but the wait/sleep functions in the arduino library (if I recall correctly) don't have as high a resolution. Also, then you would have to worry about how much time the arduino spends processing packets from the PC, which I'm not sure you can predict ahead of time. I would have to check my notes to make sure that was the reason but I think that's why I went this route... to get maximum precision commands at guaranteed intervals. Hey Tom,

The arduino can be used through the transmitters trainer port, at least on some models (i.e. ones that use a PPM signal from the trainer port). I believe I saw a project on the arduino forums that did just that.

You could (possibly) do a simpler code like you suggested, but the wait/sleep functions in the arduino library (if I recall correctly) don’t have as high a resolution. Also, then you would have to worry about how much time the arduino spends processing packets from the PC, which I’m not sure you can predict ahead of time. I would have to check my notes to make sure that was the reason but I think that’s why I went this route… to get maximum precision commands at guaranteed intervals.

]]> Comment on TxDuino: Custom PC Controlled RC Transmitter by Tom http://cheshirekow.com/blog/?p=236#comment-164 Tom Wed, 05 May 2010 10:44:12 +0000 http://cheshirekow.com/blog/?p=236#comment-164 Love this project, great use of the arduino. Does the arduino work if conected to the transmitors trainers in aswell. had a look at the code and really confused by it can you have a simper code like this. line high (for x milli secs) line low wait for y milli secs so on and so on thanks Tom Love this project, great use of the arduino. Does the arduino work if conected to the transmitors trainers in aswell.

had a look at the code and really confused by it can you have a simper code like this.

line high
(for x milli secs)
line low
wait for y milli secs
so on and so on

thanks

Tom

]]> Comment on TxDuino: Custom PC Controlled RC Transmitter by TxDuino: Configuration Builder in WxWidgets « Brain Dump http://cheshirekow.com/blog/?p=236#comment-68 TxDuino: Configuration Builder in WxWidgets « Brain Dump Sat, 31 Oct 2009 21:01:12 +0000 http://cheshirekow.com/blog/?p=236#comment-68 [...] Configuration Builder in WxWidgets In relation to the TxDuino (somewhat documented here), I wrote a C++ class to ease the interfacing with the device. That code was posted here. In this [...] [...] Configuration Builder in WxWidgets In relation to the TxDuino (somewhat documented here), I wrote a C++ class to ease the interfacing with the device. That code was posted here. In this [...]

]]> Comment on TxDuino: Custom PC Controlled RC Transmitter by TxDuino: C++ classes (windows) « Brain Dump http://cheshirekow.com/blog/?p=236#comment-67 TxDuino: C++ classes (windows) « Brain Dump Sat, 31 Oct 2009 20:38:36 +0000 http://cheshirekow.com/blog/?p=236#comment-67 [...] About « TxDuino: Custom PC Controlled RC Transmitter [...] [...] About « TxDuino: Custom PC Controlled RC Transmitter [...]

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