i know nothing about the arduino.
i need to control air temp, water temp, co2, humidity, ph, nutrient strength, lights, water pumps, water level, and ozone,
some systems will have to work togther. like if there is no co2 the temp and nutrients need to be lower,
which arduino should i get to do all of this?
The 328 can do it. You'd need extra hardware if you're using analog sensors. Or you could get the mega and it'd have enough for you. I'd start out with one sensor as seen in the tutorials and go from there. Also the 328 has only 6 analog pins. You'd need an extra ic to get extra analog inputs. Lot if information can be found in the playground. If you get stuck somewhere you can ask and I'm sure some one will be able to help you :). Have fun.
There are 328-based Arduino with 8 analogue inputs:
http://www.seeedstudio.com/depot/seeeduino-v212-fully-assembled-arduino-compatible-p-389.html?cPath=27&zenid=0d58f3f2b1941b0c8c974e881f983eaa
which is the same footrpint as a standard Arduino, but has 2 extra analogue inputs
this is a different format
http://www.nuelectronics.com/estore/index.php?main_page=product_info&cPath=1&products_id=15
But Chris Mitchell's suggestion of a Mega would give a lot more headroom
These have 8 analogue I/O's and 12 digital.
thanks for the reply.
i will add a some pics to my post, but i am still working on this and have not added everything.
this system will have lights, fans, humidifier, dehumidfier, co2, air conditioner, water pumps, some sort of system for adding nutrients, acid, base, and water, and a ozone generator.
o and the temp should be digital i hear it is more accurate
here is the controls im trying to replace for less money http://www.harvest-master.com/proplus.html HANNA BL 931700 BlackStone pH minicontroller 0.00-14.00, BL931700 HANNA BL 983319 TDS mini controller 0-1999 ppm, BL983319
i would like to make one unit that dose everything so all systems can work togther
well i got the pics to works thanks
img src="http://"C:\Users\A\Documents\hydro box10.1.jpg"
This isn't the way to do it. You need to host the pictures on a publicly accessible web server, and link to that locations. Pictures on your computer can't be seen by other people.
