Here's a hint: https://groups.google.com/forum/#!msg/ioio-users/SE-I_iSCdYs/bLehlYJWDvQJ
On Wed, Aug 23, 2017 at 4:18 PM, Ytai Ben-Tsvi <[email protected]> wrote: > What's the maximum pulse rate for your application? > > On Wed, Aug 23, 2017 at 3:36 PM, Maximillian <[email protected]> > wrote: > >> Can you give more hint about how to count? >> >> I'm not really sure how to do it. >> >> Big thanks >> >> On Wednesday, August 23, 2017 at 11:56:20 PM UTC+7, Ytai wrote: >>> >>> Sampling the frequency and integrating will give you an estimate of the >>> total. If it's not accurate enough, you'll need to count. >>> >>> On Aug 22, 2017 2:51 PM, "Maximillian" <[email protected]> wrote: >>> >>>> Hi Ytai, >>>> >>>> This is my current code (trimmed for this post) >>>> >>>> >>>> int FLOW_METER_PIN = 14; >>>> >>>> volatile float pulseFreq, totalPulse; >>>> >>>> PulseInput flowMeter = ioio_.openPulseInput(FLOW_METER_PIN, >>>> PulseInput.PulseMode.FREQ); >>>> >>>> >>>> totalPulse = 0; >>>> >>>> public void loop() throws ConnectionLostException, InterruptedException >>>> { >>>> >>>> pulseFreq = flowMeter.getFrequencySync(); >>>> totalPulse += pulseFreq; >>>> //display totalPulse value to a textView; >>>> >>>> Thread.sleep(100); >>>> } >>>> >>>> >>>> Current behavior is already as I expected, the totalPulse textView will >>>> updated only when the hall sensor is spinning (flow detected) >>>> >>>> If I use the getFrequencySync() method, I think the loop is paused, >>>> waiting the flowMeter to receive input. >>>> >>>> If it received input, the totalPulse will increase by the amount of >>>> pulseFreq from getFrequencySync(). >>>> >>>> I haven't tested with real water yet (I just blow the flow sensor to >>>> make the hall spin for early development test) >>>> >>>> My question, is it correct to use this approach with the >>>> getFrequencySync() method? >>>> Or I still need to hack the DigitalInputImpl to count the pulses? >>>> >>>> Thanks >>>> >>>> On Wednesday, August 23, 2017 at 4:18:28 AM UTC+7, Ytai wrote: >>>>> >>>>> It is known, but there isn't currently a plan to add it. If anyone >>>>> wants to contribute a patch, I will happily consider adopting it. >>>>> >>>>> On Aug 13, 2017 8:21 PM, "Maximillian" <[email protected]> wrote: >>>>> >>>>>> Is this still a known missing feature? As this post is from 2013.. I >>>>>> need to use flow sensor as well.. >>>>>> >>>>>> On Monday, September 9, 2013 at 10:31:46 AM UTC+7, Ytai wrote: >>>>>>> >>>>>>> This is known missing feature. You can work around this by hacking >>>>>>> DigitalInputImpl to count the pulses: its setValue() method will get >>>>>>> called >>>>>>> on every edge. >>>>>>> >>>>>>> >>>>>>> On Fri, Sep 6, 2013 at 11:21 AM, jorge sb <[email protected]> >>>>>>> wrote: >>>>>>> >>>>>>>> Hi. I want to connect a hall sensor flow meter to ioio. >>>>>>>> Perhaps, I could use "PulseInput" but after reading ioio-wiki, I >>>>>>>> see that I can't do it with it. >>>>>>>> Really, I need a simple pulse counter but without loosing any pulse. >>>>>>>> With flow meter I will like to get: >>>>>>>> - Total liquid flow (accumulated countered pulses) >>>>>>>> - Instant flow (reading difference between two counts in a measured >>>>>>>> time). >>>>>>>> >>>>>>>> With this sensor I could get a pulse every 50 msec or less at max >>>>>>>> rate. >>>>>>>> I think I could loose pulses doing periodic read of digital input. >>>>>>>> >>>>>>>> Some suggestion. >>>>>>>> Thanks. >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> 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/groups/opt_out. >>>>>>>> >>>>>>> >>>>>>> -- >>>>>> 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 https://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 https://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 https://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. 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