I'm not sure I can answer the "reduce jitter" question, since I'm not sure exactly what you're referring to as "jitter". As I said earlier, the jitter in the PWM output, in the sense of what is the deviation of the actual pulse-width / period from their nominal values is in the order of +/-0.01%. So I find it hard to believe that this is actually something that you're seeing and/or care about. If you don't use the buffered version of PulseInput, you're forcing some strict timing requirements on your Android app, which is not generally a good idea. This means that every once in a while, if your Android app does not read from the PulseInput fast enough, you'll miss a pulse. In buffered mode, each and every captured pulse will wait for you until you read it.
On Thu, Jun 26, 2014 at 7:09 PM, Pedro Ramon <[email protected]> wrote: > Well, the problem was solved, i just reconnect the wires of the receiver > and the jitter was fixed. I don't know why lol > Is there any advantage in using the buffered Pulse Input for reducing > jitter? > Thank you Ytai > > Em quinta-feira, 26 de junho de 2014 08h36min22s UTC-7, Ytai escreveu: >> >> The PWM output signal does not in itself introduce any (significant) >> jitter. It is either coming from your software or from whatever electronics >> you have past the output. Try to change the software so that it just sends >> out a constant value to figure out where the problem is. >> Is it possible that your PPM decoder sometimes glitches? Are you using >> the buffered version of PulseInput? >> >> >> On Thu, Jun 26, 2014 at 3:53 AM, Pedro Ramon <[email protected]> wrote: >> >>> Hi! >>> I did a android program who uses the pulse input function to get the >>> pulse width from a RC Receiver, and after that, outputs a PWM varying from >>> 0 to 100% depending on the width of the receiver output(its pulse width). >>> The program seems to read the correct pulse width, but the PWM output is >>> jittering a lot, as if it had some noise. >>> This PWM output passes through a RC Filter to be a analog output, but >>> the signal is too coarse, because of the jitter. >>> How can i remove this jitter? >>> Thank you! >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "ioio-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> >>> Visit this group at http://groups.google.com/group/ioio-users. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > You received this message because you are subscribed to the Google Groups > "ioio-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/ioio-users. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
