[query abt plant watering watcher I]

hi,
  thanks for ur reply. :D   

[query abt plant watering watcher I]

hi,
thanks for ur reply.
I didn't  face any such problems in my circuit. it is working successfully i only need the use of diod,capacitor(c1),r1,r2,probes(how it work with signals that is in dry &wet soil).why we use variable resister.also what should be the states on each gate(either high or low in both dry &wet cond).
waiting for reply  :)

[query abt plant watering watcher I]

hello,
I 've already made it and it is working successfully.
but i have some confusion about working of the components given below. 


I need full description of this project especilly the working of
* each gate of IC
*diodes
*outputs when test it with logic tester
*probes
*variable resistor]
plz reply me soon