Hi, want to share it? I am especially interested in the nutrient doser. Did you build it yourself or is it COTS?
Yes tie in one output to the optocuplers led, use a 330 ohm reisistor on the led for current control. Then you will need the jack wiring for the light, not all lights work with the PWM and some will dim. You will have to play with the frequency.
It is a custom doser I built I would sell you a board and the plans to build it but you need to have some technical know how to do it. Build circuit boards with SMD components, 3d printer, and they aren’t cheap it will cost you about $2,000.00 to build it.
I know my way around building circuit boards. I use EasyEDA and Fusion 360, and order the pcbs and enclosures at JCLPCB. But the complete doser will cost around 2k? Then why not buy one for the same money?
Been following this thread for a while - really solid VPD and climate automation setups in here. One thing I kept noticing is that most builds handle the environment side well but nothing is looking at the plants themselves. You can have VPD dialed to the tenth of a kPa and still miss a calcium deficiency because no sensor is checking what the leaves actually look like.
Just shipped a custom integration for this: GitHub - plantlab-ai/home-assistant-plantlab: PlantLab automation for Home Assistant · GitHub
Service action (plantlab.diagnose) takes a camera entity or image path and returns structured JSON - specific condition, confidence score, growth stage. 30 classifiable issues including individual nutrient deficiencies and pests. Works with Frigate or any camera entity.
The output is structured specifically so your automations can act on it. Light burn detected? Dim the light. Deficiency? Adjust the feed. The same way you’d respond to a VPD reading being off, except the input is a photo instead of a sensor value.
Full writeup with a YAML example in a Custom Integrations thread here: 🌿 PlantLab - AI plant health diagnosis for your grow room
Interesting integration, but I am reluctant to send photos or other information to some cloud platform. Is it possible to run this locally?
I think I can throw this one on the pile here in the hope that will be helpful to DWC and RDWC people!
This is a little project I did to finally bring some industrial level logging, control and automation to a chiller so it wasn't either being a black box or just being controlled with a smartplug and a temperature sensor.
This gives safety benefits, better precision, excellent monitoring and the ability to automate things like slow root zone temperature tapers to increase color expression and resin production in final flowering without the need for constant manual adjustments of the chiller.
Having played with this, its one of the most impressive integrations I have played with in terms of helping out with a grow.
Really nice work on this!