Questions about arduino UNO and my project

hi folks,

i´m newbie arduino , eletronics, must after entered new "world" or arduino, realize bring toghether of wanna projects. i´ve aquired arduino uno, in order develop aquarium monitor system, many did in other sites , forum.

i´m having issues capabilities of arduino, , if able deal sensors. question @ point related capacity of arduino , it´s pins.

my project involves:

1) lcd module 4 switches keypad.
2) rtc module
3) ethernet , sd shield, access information on web , store sensor parameters on sd.
4) 1 temperature sensor probe
5) 1 ph probe
6) 2 relay modules, access hardware (pumps , so)
7) dimmable control leds, moonphase , so.

can arduino uno support connections @ once? or run out of pins , need multiplex?

any great

daniel

you might have pin conflict 1) , 3). i'd suggest wandering on shieldlist.org, looking shields, , verifying won't conflict.

most rtc modules use analog pins 4 , 5.

you're quite vague on 7).

overall looks you're going run short on pins. might consider arduino mega (or clone) available @ prices around $30 via ebay.

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