Hi, thanks for this great project you have created. My friend and I have a small greenhouse and running it with hydrosys4 on a raspberry pi 3. Do you think the software can support controlling our lighting system on a 18/6 hour cycle? Can relays be used for this?
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The new software 1.11d has been released with support of the temperature sensor DS18B20.
Instructions to setup the sensor and the system in the hydrosys4 site hardware page:
https://hydrosysblog.wordpress.com/hardware/
The software supports also multiple sensors in one GPIO pin, anyway the multiple sensor feature was not tested yet.
Currently is not possible, anyway I think it will be useful for some applications (as in your case), I'll add it in the next Software release.
Is it posible that i add a Ds18b20 temperature sensor ? I want to measure the water temp.
Yes, you just need to change the number in the .HTML file. You should go to "templates" folder and open the file "showcalibration.html". There should be only one string with "600" number, just change it and save. Let me if you can find it :)
Hi Andrei, I never thought about this implementation, anyway I think it makes sense to add a ON/OFF button in the setting page. For Light management it is possible to Schedule time, it is possible to use a Light sensor to switch it, but the manual activation is not present.
I'll think to add this in the next SW release.
Hello! How can i add a button just for switching ON / OFF a relay just like in seetings but not for 600 sec max, just to be on until i turn it off again? Thank you for your work!
Hi, I planned myself to use some light controlled by the system, I already purchased the lights but not arrived yet. Here below my ideas:
I can see two ways to implement the lights control, one based on scheduled activity, the other on automation.
1) Scheduler: Go to WateringPlan-> Advanced Setting, take one of the schema and set for each day of the week one activity that last 4 hours (that in seconds translate to 4x3600=14400). Then go back to WateringPlan and set 4 drops to get 16 hours or 3 drops for 12 hours of light (this can be set for each month). You have to ensure that the start time of the activity is before 8 am. (disclaimer, I never tested this setting, please let me know if something is not working)
2) Automation: In case you have a light sensor attached to the system, you can go to the Automation page and let the lights activate when the light sensor reading is below one given threshold. More in details, if the sensor is below the threshold activate the lights for one hour, set pause between activation to one hour. Operational time should last around 15 hours. In this way you can save energy when the external light is sufficient. (I plan to use this method once I get the lights)
Please let me know the results of your implementation, I'll be happy to support.