The Planted Tank Forum - View Single Post - DIY Aquarium Touchscreen Controller
View Single Post
post #126 of (permalink) Old 01-22-2013, 01:08 AM
Darkblade48's Avatar
Join Date: Jan 2008
Location: Toronto/Singapore
Posts: 10,713
Originally Posted by scapegoat View Post
the hardware aspect is hellishly confusing to me, because I've never gotten this far into components. I can put together a PC no problem...

is the relay board an electrical relay?
The relay board is just an electrical switch that controls a mains line. When a 5V signal is sent to it, it will open. You can get the standard mechanical relays, or the more expensive solid state ones.

Originally Posted by bigd603 View Post
That RTC chip looks pretty cool, DarkBlade, thanks for pointing that out!

Is that pH probe the same as e Bay item 170752579436? I've been thinking about snagging it but dont know if it's any good. Are pH probes a "you get what you pay for" kinda thing? Also, what board are you connecting the probe to?
I personally like the DS3231 chip, since the DS1307 does seem to drift. The libraries are interchangeable, so there is no extra work involved.

I just got my pH probe locally; cost me $15. The one I am using seems to work fine. I am connecting the probe to a pH meter breakout board; there are lots out there. I got this one from a friend who had a spare. You can build your own for ~$10-15, and save some money, though (I was going to go this route).


A Primer to Pressurized CO2 and A Primer to Planted Tanks
Eheim Pimp #362 - Eheim 2213 x2, Eheim 2028, Eheim 2217, Eheim surface skimmer and Eheim autofeeder.
Victor Pimp #33 - HPT272-125-350-4M
Darkblade48 is offline  
For the best viewing experience please update your browser to Google Chrome