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Buzzer interval when waterlevel is low
Posted: Sun Sep 20, 2015 5:46 pm
by lmolenmaker
Hi guys,
I would like some help from you.
I have my water-level sensor in my freshwater reservoir.
I would like to have my buzzer (connected to actinic channel) activated when the level reaches 20%. It needs to be an interval, not continuous, lets say every minute for 1 second at 100% loudness.
It also needs to switch off my fresh water pump (relay 3).
Can somebody please provide me with a piece code.
That would be much appreciated.
Thanks in advance.
Leslie
Re: Buzzer interval when waterlevel is low
Posted: Mon Sep 21, 2015 10:58 pm
by rimai
Is it less or more than 20%?
What function are you using right now for port 3?
Re: Buzzer interval when waterlevel is low
Posted: Tue Sep 22, 2015 6:23 am
by lnevo
Its in ATO reservoir so I would assume alert if less than 20%
Re: Buzzer interval when waterlevel is low
Posted: Wed Sep 23, 2015 9:49 pm
by lmolenmaker
Sorry, for replying so late and for not being clear.
I meant less than 20% and the power of my freshwater pump is connected to port 3.
My freshwater pump switches on when the float switch is activated in my sump. This float switch is a stand alone and not connected to the ReefAngel.
So basically it needs to switch Port 3 off when the level is lower than 20% in the fresh water reservoir and let a buzzer go with an interval. A continuous buzz will drive me and the rest of the family crazy.
Thanks for your help guys
Leslie
Re: Buzzer interval when waterlevel is low
Posted: Sat Sep 26, 2015 4:25 pm
by lmolenmaker
Anybody?
Re: Buzzer interval when waterlevel is low
Posted: Sun Sep 27, 2015 7:13 am
by lnevo
This should do it:
Code: Select all
if (ReefAngel.WaterLevel.GetLevel() < 20) {
ReefAngel.Relay.Off(Port3);
ReefAngel.PWM.SetActinic( (now()%60<1)*100 ); // Set 100 to the volume % you want.
}
Re: Buzzer interval when waterlevel is low
Posted: Thu Oct 01, 2015 4:06 pm
by lmolenmaker
Thank you Lee.
What does the %60<1 stand for?
Leslie
Re: Buzzer interval when waterlevel is low
Posted: Thu Oct 01, 2015 6:14 pm
by rimai
% is a mathematical formula of modulo.
https://en.wikipedia.org/wiki/Modulo_operation
Basically it means one second out of every 60