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Electronics => Projects, Designs, and Technical Stuff => Topic started by: dave_j_fan on August 14, 2016, 05:04:18 pm

Title: 2wire sensing 10level water level <5$
Post by: dave_j_fan on August 14, 2016, 05:04:18 pm

A discrete version..i like BJTs

in reality i will add a fet touch timer ...so this unit will display for say 5mins
and save battery for years

add some more BJts and calibrate u can go 10 or more levels

Title: Re: 2wire sensing 10level water level <5$
Post by: StillTrying on August 16, 2016, 02:46:37 pm

In theory you could use a CMOS hex buffer or 2.