RPI2 with S0-Interface for power measurement - Raspberry Pi Forums

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hello,
im using rpi2 long time combined (hope correctly in english) three-phase ac meter s0-interface measuring power consumption (1000 impulses/kwh) in house.
until last week had linux von rpi , measured power consumption on gpio5 w/o problems. when try same procedure on windows iot gpio5 got flood of flanks.

im listening on valuechanged-event of port getting triggered (approx) every millisec (rising-falling-rising-falling..)
created timer reads value of port every 1ms , reads every ms value!
according documentation of s0-interface of ac-meter (http://www.amazon.de/e-tech-drt428b-dre ... uctdetails) signal should ~70ms long. gpio5 connected s0+; , s0- connected ground of rpi.. need add repell signal? why signal behaves iot , not previous linux installation?

sadly voltage meter broken cannot measure voltage @ port.. before buy new 1 know if of u knows why signal 'freaking' out hard?

+i tried without hdmi-connected because read problems grounding.. doesnt helped


thank time , help!



raspberrypi



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