hi friends, here comes another issue...
i finished part of my setup for my ardugarden.. however im having a problem... the appartment im in is pretty old but refurbished ... whenever the printer goes on, my lights flicker...(fyi)
the arduino is plugged into the wall (9v) its running 2 ralays at 3.3v. an lcd a potentiometer for user input 2 buttons.
now... when i plug something in in the same room it SOMETIMES happens that the lcd outputs a whole lot of junk... most of the times i cant even understand where its coming from sometimes its just an addition character ...
first i thought it was my code.. but before going to the computer i tried hooking the arduino up to a 9v battery pacl... same problem. then i removed the digital pins going to the relay. same problem those pins back in place i removed the power from the relay bread board, same problem. that got me thinking... the problem is not in my code its from something plugging into one of my power outlets.
only way i can remove the error is to press reset - wouldnt be a problem, except the plants need their light in regular intervals...
any questions ... let me know.
i found this but i am not sure how i can use these ideas to my advantage... http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1267191695/9