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Thanks for the information on the RoboMatic.

I knew there were less expensive solutions out there, but I also read about cautions concerning cheap knockoffs. Next iteration I'll try less expensive models and verify with the PAR meter. The ideal solution for me would be to mount the printed circuit board directly to the underside of a...

The LED light is: DormGrow 240 Watt Full Spectrum G8LED Using a HydroFarm Quantum PAR Meter, I measured the PAR 6 inches below the light: 1740 micro mol m−2s−1

I'm in the dark phase right now. I'll get the model tomorrow morning. What I need is a light that is suitable for one plant in the cabinet and will also work in a four plant tent -- for when the grower wants to expand. Anything beyond four plants would require the addition of more lights...

The current design has the LED light somewhat thermally isolated at the top of the cabinet and I'm exhausting from the bottom. I cycle the fan to help control temperature. I think the next iteration will exhaust from the top and dump the hot air either to the outside, or partially back into...

I have ppm and pH pens and manually adjust ppm and pH once a day. Starting tomorrow I'll start recording return-EC as well as tank-EC. Ultimately, I want to develop an adaptive dosing system.

Duh! Color me naive. Although I'll probably stay with some version of this scrubber. My goal is to develop a highly automate system for a novice grower that is compatible with a kitchen environment. The grower purchases a "cartridge" from a dispensary with a plant that has been taken through...

I think you're right. It's 4" and stubby. It's working OK for now, but may be close to saturation. Just starting to bud. The next iteration will have the fan and scrubber on the outside back of the cabinet and I'll probably increase to 6". I'll use a motorized damper to selectively send the...

Thank you. I had not considered the difference between root EC and tank EC, but you are of course correct. I'm not thrilled about adding a second probe. I will try putting the probe in the discharge stream in such a way that it sees the discharge when the pump is on and sees the tank...

I have a question concerning the adjustment of my nutrient concentration based on the needs of my plants. I operate on a 24 hour cycle, I start with a full nutrient tank with known EC and pH and feed for 24 hours. At the end of 24 hours I measure the concentration and pH, top off the tank...

First, I am an absolute newbie when it comes to growing. That said, I would like to share my experience and find out where I can improve. So far: 26 days in veg, switched to 12/12 light schedule and started ramping from veg to flower nutrients over several days. I started with a White Tahoe...

Thanks, G gnome. My system is a hydroponic scrog. I'm exploring automation in small growing spaces. Here is an examply of a CO2 plot.

I would like to introduce myself and ask a question. I’m a retired electronics engineer who literally “retired and bought the farm”, (on the Oregon Coast) I’m new to growing. I look forward to sharing my experiences and learning from this forum. I’m developing an automated grow system that I...