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  • the_real_kameo commented on the_real_kameo's instructable Aquamonitor4 months ago
    Aquamonitor

    Hi JamieR5,I actually realise how much the project evolved in 7 months. I updated the codebase and is absolutely willing to share it with anyone interested. To answer you precise question, the way to fine tune the timer is through the systemd timer. It's a bit complicated to give you background on Systemd, but I basically use it to replace the classical Cron system of Linux. To adjust your timer, just edit the rodi.timer file in your /etc/systemd/system directory and set it to your convenience.To calculate the time the rodi needs to run, I just measured the water evaporating over a day, the debit of my rodi in liters. Then with the size of my sump area where water variation is measured, I knew how many litters would be needed and refilled accordingly.As an exemple if your sump is 16 cm ...see more »Hi JamieR5,I actually realise how much the project evolved in 7 months. I updated the codebase and is absolutely willing to share it with anyone interested. To answer you precise question, the way to fine tune the timer is through the systemd timer. It's a bit complicated to give you background on Systemd, but I basically use it to replace the classical Cron system of Linux. To adjust your timer, just edit the rodi.timer file in your /etc/systemd/system directory and set it to your convenience.To calculate the time the rodi needs to run, I just measured the water evaporating over a day, the debit of my rodi in liters. Then with the size of my sump area where water variation is measured, I knew how many litters would be needed and refilled accordingly.As an exemple if your sump is 16 cm x 60 cm and lowers from 10 cm over a day, this would make you 16x60x10=9600, 9,6 L. if your Ro/Di unit is producing .5 L per minute, you'd have to let it run for 18.2 mins, so roughly 1100 seconds. anyway if you refill too few, the low water level detector will tilt and initiate a quick refill.

    PS : contact me at kameo[a}archimede.edu to get the latest source code.

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  • the_real_kameo commented on the_real_kameo's instructable Aquamonitor11 months ago
    Aquamonitor

    done. you'll find more schematics & pictures in this instructable.

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  • the_real_kameo commented on the_real_kameo's instructable Aquamonitor11 months ago
    Aquamonitor

    Yep, I'll shoot some this WE ! (working on adding some buttons now, to allow for spot refill or stop a refill).

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