I was looking into their Pulse Hub after I saw they released an adapter so you can use a Teros 12 with it. How do you like it so far and does it integrate with the Pulse One?
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It’s pretty sweet. The humidity / temp sensor is really well made. For the soil sensor I don’t quite understand PWEC vs bulk ec, but I mainly bought it to chart the medium’s moisture levels. Pulse hasn’t done a great job of explaining it. The Pulse One comes up on the app’s interface so I can monitor everything on one page, but the charts are all separate.
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I found this on the Pulse site it helps explain the difference between PWEC and Bulk EC.
It displays those two readings as PPM500. Can you change it to display ds/m?
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I did read that. I get the concept, but the data is hard to make sense of. The numbers are closer to the input EC with coco, but I used rockwool during my last grow and it was pretty chaotic.
I also have it in PPM because that’s what I used for the first 6 or so years. Then I started posting on forums and switched over to EC to avoid arguments with everyone. lol. I still had to look at a chart to convert EC to PPM every time. So I decided to switch to PPM when I started using this hub just to make it easier on me. I was showing you the interface, not really the data.
So okay. This is what’s going on right now. The nutrients were mixed to about 1.4ec. The bulk is reading 0.81. The PWEC is 1.87.
The PWEC is based off of the medium being coco. I don’t understand how the nutrient availability is higher in coco than the input EC. Is the bulk lower because the coco is dense, but has a lot of air pockets?
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Think of coco like a sponge, you are feeding with salts that are building up over time in the medium, that’s the reason why the PWEC is going to be higher than Bulk EC.
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Could that be a sign there’s not enough runoff?
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Yes, and can be corrected with heavier feedings and or lower EC nutrients, keep in mind EC rises as the medium dries out. Measuring runoff gives you the whole picture.
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Thanks.
Sorry for jumping in @lusid
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It’s not from buildup. The PWEC is always higher and the bulk is always lower. The PWEC will drop during a watering, but ramp up once the excess water drains. It’s tied to the moisture amount more than anything.
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I don’t have any problems with my current grow, mind you.
This is an example of what I’m talking about. I flooded the pots and took a picture while they were fully saturated. Then another a few seconds later when the water drained out and the coco was at its natural max holding capacity. You can see that the PWEC lowers and the bulk EC raises until they nearly meet at the input EC. Then they head off in separate directions once the saturation stabilizes.
(I assume that there is terminology for all of this, but I’m just making up my own.)
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Weird. What light do you have? Its dimmed both my HLG350 and Grow Light Science ProGrow320 with the adaptor “A” installed, no problem.
What mini split do you use and how did you tie it into automation?
Mr Cool DIY, it’s a rebranded Midea. I followed this to integate it into Home Assistant
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