D.I.Y auto doser
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Old 01-31-2014, 01:04 AM   #1
scotty b
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D.I.Y auto doser


I am thinking of putting together a auto dosser, i am going to go with a dial knob rater then trying to code a program
it will take some tinkering to get it dialed correctly
any one see a issue with what i have in mind ?

here are the components i am thinking of using

http://www.amazon.com/HOSSEN%C2%AE-1...d_sim_indust_4

KEEDOX® NEW 6V-90V 15A DC Motor Pump Speed Controller: Amazon.com: Industrial & Scientific KEEDOX® NEW 6V-90V 15A DC Motor Pump Speed Controller: Amazon.com: Industrial & Scientific

Amazon.com: 12V DC DIY Dosing pump Peristaltic dosing Head For Aquarium Lab Analytic: Pet Supplies Amazon.com: 12V DC DIY Dosing pump Peristaltic dosing Head For Aquarium Lab Analytic: Pet Supplies

Last edited by scotty b; 01-31-2014 at 01:06 AM.. Reason: i
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Old 01-31-2014, 01:38 AM   #2
shift
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Do you plan on automating it with a timer?
You will need one that can turn on and off with resolution down to the second rather than the standard minute ones.

If you do decide to take a stab at programming i have a great Arduino dosing system tutorial
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Old 01-31-2014, 01:58 AM   #3
scotty b
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I absolutely hate coding
I was thinking of having it on a timer and having it come on every 8 hours at 3ml per hour
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Old 01-31-2014, 04:34 AM   #4
shift
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Most timers only let you down to a minute so you would be pumping for 60 seconds. You would have to run it extremely slowly or find a timer that went down to the second
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Old 01-31-2014, 05:12 PM   #5
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If the pump can get under 30ml per minute at 5v I think it will be fine, just dilute the fertilizer you wish to add. Let me know how that pump works out for you.

Amazon.com: DROK PWM 12V-40V DC Electric Pump/Motor Speed Controller Stepless 10% -100% 10A: Electronics Amazon.com: DROK PWM 12V-40V DC Electric Pump/Motor Speed Controller Stepless 10% -100% 10A: Electronics
that is what i was advised to use to control the speed of that pump combined with a powersupply but I don't know electronics that well and id think the one you linked that can go to 5v will let the pump be slower?

just found this one too
http://www.amazon.com/HOSSEN%C2%AE-1...d_sim_indust_6
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Old 01-31-2014, 05:27 PM   #6
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Well if it goes for a minutes just calculate how much it uses in a minute and then just fill up a jug with the desired ferts and then have it use all of that. Plus it would be less refills you have to do

But let me know how this setup goes! I really need one bad cause I miss days all the time :/
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Old 01-31-2014, 10:02 PM   #7
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Dual purpose auto top off! almost a not bad idea for an topless tank
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