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1  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: August 28, 2014, 08:19:17 am
Hey Everyone,

Long time since I've been on the forum...Great to see that this thread has taken off so nice!! smiley
I'm currently busy on a few projects with Arduino - 3D printer, A domatica system for the garden and...A new version of the Hydroponic Controller. This last one will be upgraded so that one can also measure/control the EC value of the nutrient tank.
Also will be trying to incorporate the ethernetshield so it can output data to Cosm (or what it's called today smiley-wink ) if there is enough room for it. I'm currently using the Aduariumshield from Practical Maker as hardware since this shield has got everything we need for this project. Only an Ethernetshield and TFT screen need to be added.
When I'm ready for it I will put the documentation for this project online and you'll all be able to enjoy this upgrade smiley-wink

I just wanted to ask... Have you tried to use the integrated SD card slot on the rear side of the LCD/TFT panel?
When I use the adjustable shield directly on top of the Mega, it works, but with the (8-bit) wiring like in your picture and adding MISO, SCK, CS(SS) and MOSI  to pins 50,52,53,51 (and shield's 16,17,35,34)  I have no luck so far. I am not sure which other pins I should connect or if it is at all possible. I do not know if you are using the break-out SD module for convenience or if you have ran into problems also.
The integrated SD reader from that specific TFT screen wasn't functioning. The seller on Ebay admitted this after a long time communicating about it... So I had to use an external one.

Hello Billie,

Are you still there??
Yes I am, but have been doing some other stuff. smiley

is there an easy way to run this on the yun without lcd/tft but with website controls/monitor?
I don't have a Yun so I can't say...

Greetings Billie
2  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: October 24, 2013, 06:58:12 am
congratulations for your perfect project!
Thank you very much! I did my best at the time, probably could do a better job programming it, but as you say it works so...Call me lazy smiley-wink

I want to make an automation to control the electrical windows of my greenhouse via sms
and i want to ask you if this touchscreen is readable on sunlight conditions.
When the sun is shining directly on it it's difficult to read the screen...

Another question i have is : Do you think that this system will work stable on real conditions on a greenhouse?
My greenhouse is about  5000 m2 ,with high temps.
It works stable, although you probably will need to buy better pH probes then the one's I've used. Also and this is an important one. Make sure the controller is shaded. High temperatures will mess up the stability of the device. Next year I will be installing it outside of the greenhouse in a waterproof housing and in the shade...

Have fun and if you got it working post some pictures here!! smiley-grin
3  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: October 10, 2013, 12:00:30 pm
Are these simple enough? smiley-grin
4  Using Arduino / Project Guidance / Re: Need help in gathering information from images on: September 16, 2013, 06:29:29 am
That's true...Raw's definitely has more information then one needs smiley-wink
5  Using Arduino / Project Guidance / Re: Need help in gathering information from images on: September 16, 2013, 06:16:03 am
If your images are Jpeg or RAW's then you could try and read out the EXIF data from the file. There's a lot of information hidden in a jpeg smiley-wink
How to do that exactly in Arduino??? I don't know...
6  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: September 15, 2013, 05:18:06 am
I just have one constructive feedback on the plant physiology side of things. If your able, you should really incorporate EC/CF control. Although pH controls nutrient uptake, nutrient availability is equally important. EC is a great tool for controlling, among others, such things as internode stretching, hardiness and taste. You can also control visual aspects such as cracking/splitting with EC control (particularly important with tomatoes). I think you'll have better control of plant size, especially during seasonal changes (i.e. winter vs summer ).
Hey Damien,

Thank you! smiley
I already measure the EC value but for now with a pen instead of using the controller. I couldn't find a good priced EC module to put in the controller...
EC control is very important, I know. To high and the plants don't grow well and to low and the same happens. For my peppers I let the EC value swing from 1.8 to 2.4 depending on the weather conditions.
In the new controller EC measurement will be incorporated. But as stated earlier I'm still learning how to use Eagle, so making the new board will have to wait until I and my finances are ready to do so smiley-wink

Hi Billie, now that it's setup, the issues begin smiley

Regarding the LDR in you sketch you have int lightSensor = 60; I can't get any readings on light (it's only bouncing between 24,25,26) no matter the actual light condition. I know the LDR works because if I set the lightsensor to pin 14 it gives me a range 250~32000 (32000 with the phone led flash next to the ldr). Any hints?
Maybe there's a problem with your A4 pin..?? Do you mean you use A14 = 68? If so then use that pin smiley-wink

Also would love to know if you have any newer version as this is already a couple months old and you probably have tweaked it already for some issues encountered along the way.
Nope, no new version to be tested until this season is over. I don't want to risk my harvest by overdosing at the moment. This winter I'll be recoding the device to suit the new hardware (EC, new screen, ethernet module).

I'm going to kickstart my NFT test project
Nice setup!! smiley-grin

With kind regards,

7  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: September 13, 2013, 03:52:16 pm
First of all...Cool to see the controller being of use to someone smiley-wink

anh... just hit me... I had a problem with eepromex.h and eeprom.h
made some changes to eepromex.h and probably that's where my problem lies.

gonna clean up the eepromex library.
That could be it...When you enter the pH adjustment screen the program reads the values for setpoint and hysteris from eeprom...
You could also try and whipe the values stored in eeprom. I faintly remember having problems in the beginning because wrong values stored in eeprom...
8  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: September 13, 2013, 04:24:25 am

Can you elaborate a bit further? NAN = Not a number?? Or what?
Do you get errors during compiling?

With kind regards,

9  Using Arduino / Programming Questions / Re: dht11 problom on: September 09, 2013, 02:20:53 pm
Did you install the library? -->
10  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: September 09, 2013, 01:40:09 pm
The only issue I have is sometimes the "buttons" don't work. Then I wait 10 seconds and try again. Sometimes it works, sometimes it doesn't and I have to wait a bit more.
Hello Tiago,

The buttons react slowly. That's because of the 'delays' that are still in there. Just keep pressing the button until you enter a new window and everything is ok smiley-wink

Hi Billie,
Thank you for the fast reply, the code works perfectly now (on arduino 1.0 and 1.0.5).
I've PMed you to talk about my project without getting off topic here.

Glad to see you getting it to work smiley
Hope to see a movie when you get everything up and running smiley-wink

With kind regards,

11  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: September 07, 2013, 03:37:48 pm

I've figured out why you get the error.
There's been a couple of changes in the library...The current version uses EEPROMEx.h as filename whereas the old library used EEPROMex.h. Change that in the code (#include <EEPROMEx.h>) and the first compile errors disappear.
Next you'll have to edit the EEPROMEx.h file...Change #include <EEPROM.h> into #include <avr\EEPROM.h> and this makes the rest of the compile errors go away...
There's also an #include <avr/EEPROM.h>, but I think this is an error and should be #include <avr\EEPROM.h>. If anyone can collaborate?
12  Using Arduino / Motors, Mechanics, and Power / Re: 12v relay advice on: September 05, 2013, 05:24:39 am
This will do the trick smiley-wink -->
13  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: September 04, 2013, 03:54:05 pm

Never used a Pi or an RFM12B before, but am working on a 'networked' version... I'm currently busy developing a PCB so all parts fit together as a shield...
Access through the Internet is the next logical step. smiley-wink

With kind regards
14  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: September 02, 2013, 02:55:21 pm
Ah, OK, glad I asked you first Billie :-)

Can you suggest a bundled kit of components that would be suitable for your software (Arduino + Touch Screen Display + SD Card Reader?
I can only advise you the parts I used, because that's what I got. But if you are willing to forfait the sd card, then the kit will do smiley-wink
15  Community / Exhibition / Gallery / Re: Billie's Hydroponic Controller on: September 02, 2013, 02:32:18 pm
The kit is ok, but there's a chance that the sd reader doesn't work. You'll have to ask the seller.
Network functionality will be a problem because of conflicting pins ( ie pin 10 & 4) between the ethernet card and the tft shield... You could try and resolder some pins and try to recode everything, but that's beyond my expertise. Another option is to use a seperate arduino to connect to the network smiley-wink

Let me know how your build continues...
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