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John5528
Joseph1346
An executive can be made on 8) it can be made on thyristors, you can create it yourself.
Jeffery
I am plagued by vague doubts about the accuracy of these pumps.
Angel628
I apologize, but I didn't quite understand! Is this supposed to be added to my set, or is it a replacement?
P.S. Got it!
+ executing to the controller!
Why on 8?
What about 4 relays and 5V? The pumps will be connected to 5V, as we need to reduce their power.
Kristen1161
We will find out the minimum (A) and (V) at which the engine operates, calculate, and determine (ML) A solutions will already be diluted.
Guy
Here it is! How about these pumps? I'll fix the problem with the broken fittings! Just have 3 pieces in stock? Miniature water pump. According to reviews, my power supply can handle it!
Elizabeth882
Request to the Moderators to rename the topic "Pump Control System" as the implementation concept has changed. Arduino is not used! Thank you!
Aaron6112
I was dissuaded from Arduino, although I really wanted to explore this wonder! Maybe in the near future, I will get rid of mechanical timers and create sunrises and sunsets on Arduino.
I came across a topic about a similar craftsman and, out of all the suggested options, I chose this Time Module. I ordered 3 pieces.
Tammy
Hello everyone! To be continued.
Today I received this miracle of Chinese production!
On one of them, a non-working relay will need to be replaced!
I spent a long time figuring out the settings, but I got it! Everything is fine! It can turn on from 0.1 ms to 240 hours!
To be continued!
Sarah
US $17.94
Rick
19$ for 3 pcs
Chelsea567
Hello everyone!
Today I conducted a trial run. The results exceeded all expectations!
The pump can dispense from 0.5 ml to ......
Now about the accuracy: it was activated 10 times for 10 ml, resulting in 101 ml. That is, the error is 1 ml. PERFECT!
More to come...
Mike
Small sketches on the work!
Julie4738
Hello everyone! I finally found the time to put together my dispenser! I bought the pumps from here. It all looks like this: And this is in test mode! Each pump is set to 1ml of liquid per hour! In a day, two pumps should dispense 48ml! That's how it is!
Lindsey3362
Good morning! The test mode was successful! In 12 hours and 23 minutes!
Cheryl
Hello. Could you please tell me if you bought these time modules on eBay? Does the time reset? I'm hinting that for Arduino, a real-time clock board is required; is it not needed here?
Michelle13
These boards do not have a clock; there is a countdown timer for when the relay will turn on and how long it will be on. There is no Arduino here, I have already mentioned that.
Chelsea
What kind of pumps are you using? Initially, you wanted to use glass pumps, then you provided a photo of the pump, but the brand is not visible on it. And one more question, how did you achieve such low pump performance? Only 24 ml in 24 hours.
Alejandro
No, that's not correct! There is no clock on the board; if you need the relay to turn on every hour, set T1 to 60 minutes, and the countdown will start and repeat indefinitely. The delay time for relay T2 is set from 1 ms to 270 hours. We adjust the accuracy of the liquid filling in milliseconds.
The pumps are like this.
Every hour, the relay turned on for 15 ms, during which time the pump, powered by 12V, filled 1 ml.
Shane
Please tell me the total cost of all the electronic parts. And one more question: when the power goes out, do the settings need to be entered manually, or does the system continue to operate according to your algorithm?
Darrell5975
3 pcs of relays at 6.5 each + 12V power supply for 100. 3 pcs of 12V power supplies for pumps at 80 each = 240, and three pumps at 100 each. Total - at today's exchange rate 1166. It cost me about 800. If the electricity goes out, the settings are saved, but when turned back on, the countdown starts over.
Mark
Best price! DP-4 Automatic Doser for Reef Aquarium 100-230V
2,081.76 / piece
Free shipping
Here are 4 pumps
Randy
How the dosage works, there are no failures, why 2 instead of at least 3 pumps. I am thinking of acquiring something similar. I have switched from droppers.
John1464
without failures! Two pumps, as there’s nothing to hang on the third. I always have magnesium at a high level. I might connect the vinegar dosage.
Daniel132
This thing is suitable for 4 channels right away. I think it's like yours, but for 4 channels.
And this one is even cooler.