Reef Pi troubleshooting
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NewbyREEF
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I run mine with separate 5v to the relays
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Powering the whole relay board thru the raspberry pi is a stretch...all relays activated on a 5v 8 channel board is .6 amps. Better to power it on its own.
NewbyREEF
Active Member
That's what I'm doing separate power for relay
I think you have to run it in that order ...but let me check , the ui has been updated recentlyWhen trying to calibrate the PH probe. Some of the fields are blanked out. Is this a problem ? Or is it my build ? Low and High.......? No drop down.
Michael Lane
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ph calibration has to be run in order. That was a requirement for the Atlas scientific pH board. Once you run for ph 7, then the next field is available.
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Makes sense, because in my reading, the calibration at 7 gives you the offset from zero, then the calibration at 4 give you the slope at low ph(4 to 7) and then the calibration at 10 give you a slope at high ph(7 to 10)
