Hey stud , thanks for your reply. My hydro kit came in and I flashed it using the bin that you provided. However I cannot get the sensors to show up. I configured the SCL/SDA on the correct GPIO, I confirmed by running the i2cscan command in the console. I dont have the option to use the "Generic" t...

Which one is recommend for hydro use 0-50,000 uS/cm (K 0.1) or 5-200,000 uS/cm (K 1.0) ?

Hey thanks gvbz , I will work on getting my pumps installed and see if I can implement your sequence. It would be great if I can get the calibration working. It looks like the function nodes does some quick math and tells the pump to turn off using the delay node. I have questions regarding the vari...

Hey Everyone, I would like to see if I can get some feedback at my attempt at nutrient dosing through Node-Red. Ill provide some background info: I use Node-Red for all of my automations and basically use Home Assistant for the front end and for push notifications to my iPhone. Here is the front end...

I have not yet implemented their EC probe and I may make the switch to Atlas-Scientific but here is what I am using which includes the added code to send the data to an MQTT broker. I guess the best way is to test it out by calibrating both the PH and EC probes, then restarting the ESP32 then put th...

The reason I ask is because that sensor is not the best for reading CO2, it reads "eCO2" equivalent calculated carbon-dioxide. I would recommend an NDIR (non-dispersive infrared) sensor like the MH-Z19 or this one https://atlas-scientific.com/probes/co2-sensor/ I have played around with sensors like...

Are you trying to read the amount of carbon dioxide in a grow room?

Short answer yes. I have the Gravity PH Meter Pro connected directly to an ESP32 that runs Arduino Code which then sends the data to Home Assistant via MQTT. My next project is moving it from Arduino to ESPHOME which seems like its not too difficult to do. https://github.com/esphome/feature-requests...

I see. Valid concern.

I use a automatic dog water bowl with a float valve directly to my spigot with 80 psi of pressure and in the 8 years that I have had it has never overflowed. Indoor toilets have the same setup.

Why not use the same concept for the fresh water res, use a float valve and connect your pex line directly to it? That would also avoid the whole solenoid and water level sensor. You can use ultrasonic sensors to check waters levels too. Perhaps I am missing the big picture, I don't see the point in...