Rob, i think i've solved my issues with ph probe and the wave maker. I've replaced the probe and now readings are "stable", BUT, sometimes (even if I power off all electrical eqipment) i get very very low readings, like 2 or 3 ph.
sometimes (not always) a raspberry reboot is enough, sometimes, like now, even after 3 reboots, reading are still around 3.50
Obviously, such a low value is impossible.
the probe is calibrated.
Any idea ?
sometimes (not always) a raspberry reboot is enough, sometimes, like now, even after 3 reboots, reading are still around 3.50
Obviously, such a low value is impossible.
the probe is calibrated.
Any idea ?