i want to make a "water me man" - which is a moisture-dependent LED.
a lit LED means "water me!!!"
the moisture-sensoring can be detected with 2-prods' resistence measurement and:
if Resistance>(preset value) then lit LED.
with the arduino i think it's pretty easy... but what i want to build is a simple enough electronics - that it can be very cheap
chip? naa... it's a very simple circuit.. i saw it on RadioShack's Electronics booklet BenBonfil gave me - it's just that i didn't buy any futurelec goodie-bags yet!!! waiting for the salary i guess..
a lit LED means "water me!!!"
the moisture-sensoring can be detected with 2-prods' resistence measurement and:
if Resistance>(preset value) then lit LED.
with the arduino i think it's pretty easy... but what i want to build is a simple enough electronics - that it can be very cheap
chip? naa... it's a very simple circuit.. i saw it on RadioShack's Electronics booklet BenBonfil gave me - it's just that i didn't buy any futurelec goodie-bags yet!!! waiting for the salary i guess..
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