Recent content by jasonc

I have a personal project I'm working on that involves calibrating some values from a sensor input. So far I've been doing the calibrations in a very tedious manner but I'd like to write a program to solve the calibration for me. Very long story very short, this basically boils down to the...

I spent a ton of time learning about electronics and filter design in the last few days, and switched over to an active 2nd-order hardware filter, and IT'S AMAZING. The response time is SO much better. My hardware filter isn't quite perfect (not bad for my first electronics project but...

It's for a personal project. The signals that I'm dealing with here come from the red, green, blue, and white LED channels of a hacked prototype board from one of these: http://www.mind-lamp.com/. The software filtered results actually don't look half bad, they match what I see on the on-board...

Thanks, Ackbach, very sound advice. The fundamental problem here is that I'm a software guy, not a hardware guy. :) I have only basic working knowledge of electronics and I had to get this working quick and dirty. I have a device that has four PWMed outputs that normally drive LEDs but I am...

I figured it out. Seems it was just a precision problem. I switched to doubles instead of floats and the results are much smoother.

[FONT=tahoma]I am reading some noisy data from external sensors and trying to smooth it out. I know very little about discrete filters. When looking at my data in my plotting program (kst), I applied a low-pass filter and it looked great so I tried to implement a similar filter in my own...