Search found 164 matches

by fma
Tue Apr 14, 2015 7:57 am
Forum: General Discussion and Questions
Topic: FFT
Replies: 8
Views: 11846

Re: FFT

I would like to measure both speaker and room responses (one idea is to take into account the speaker response when measuring the room repsonse, as the MLS will be wrong through the speaker; don't know how to do that, but...) Do you think it could be possible to generate the MLS from a pyboard, read...
by fma
Mon Apr 13, 2015 10:43 am
Forum: General Discussion and Questions
Topic: FFT
Replies: 8
Views: 11846

Re: FFT

In case someone is interested, the code is here:

https://github.com/fma38/misc/tree/master/pyMLS

('sox' stuff doesn't work, as some params changed).

But it requires numpy.convolve() and numpy.correlate() to work; don't know if it is omething difficult to implement in Micropython...
by fma
Mon Apr 13, 2015 8:03 am
Forum: General Discussion and Questions
Topic: FFT
Replies: 8
Views: 11846

Re: FFT

Awesome!

Long ago, I started to develop a python-based measuring tool using MLS¹; time to dig this old project!

¹ http://en.wikipedia.org/wiki/Maximum_length_sequence
http://www.libinst.com/mlsmeas.htm
by fma
Wed Apr 08, 2015 3:59 pm
Forum: MicroPython pyboard
Topic: pyboard 3D printed box
Replies: 2
Views: 3922

Re: pyboard 3D printed box

;)
by fma
Fri Mar 27, 2015 4:03 pm
Forum: Hardware Projects
Topic: Smart gamepad
Replies: 4
Views: 5815

Re: Smart gamepad

How about a cable? They would not cause havoc in test environments and do avoid complexity! 8-) Wii-Remote Nunchuck-Addon including UEXT adapter My small MicroPython "library" . This controller does use I²C (mostly stable on 200kHz only!) which makes it easy implemented on all platforms. I need muc...
by fma
Fri Mar 27, 2015 3:05 pm
Forum: Hardware Projects
Topic: Smart gamepad
Replies: 4
Views: 5815

Re: Smart gamepad

Yes, I saw this controller. But I don' think it is an original PS2 controller. I'm looking for a Dualshock 2, as it is said to be very accurate.
by fma
Fri Mar 27, 2015 12:19 pm
Forum: Hardware Projects
Topic: Smart gamepad
Replies: 4
Views: 5815

Smart gamepad

Hi! I'm working on a funny project: building and coding an Hexapod robot (sorry, the wiki page is in french; but as we now have a multi-language wiki, I'm going to translate it in english). I built a small prototype, and started to code the control software. I can now move the body, and make it walk...
by fma
Wed Mar 11, 2015 3:20 pm
Forum: General Discussion and Questions
Topic: Serial Chart to Live plot Micropython's output
Replies: 7
Views: 9236

Re: Serial Chart to Live plot Micropython's output

Here is a patch made by a friend to compile SerialChart under linux: Index: portbase.cpp =================================================================== --- portbase.cpp (revision 39) +++ portbase.cpp (working copy) @@ -1,6 +1,6 @@ #include "portbase.h" #include "portrs232.h" -#include "porthid....
by fma
Tue Mar 10, 2015 3:41 pm
Forum: General Discussion and Questions
Topic: Serial Chart to Live plot Micropython's output
Replies: 7
Views: 9236

Re: Serial Chart to Live plot Micropython's output

This utility sounds good, but I'm unable to compile it under linux; did someone have more luck? It always wants to include a windows.h file...

Thanks,
by fma
Tue Feb 24, 2015 11:42 am
Forum: General Discussion and Questions
Topic: CanOpen
Replies: 1
Views: 3552

CanOpen

Hi!

I would like to talk to a few PLC I/O, which use CanOpen. Is there something already existing? Are there people using this protocole? Some years ago, I played a little bit with Can bus, but I don't know anything about CanOpen...

Thanks.