my firts post.
i have a nice project what i can use for my work (graphic industry).
a inductive conductivity probe i want to let the uno do a readout and if it not the adjusted value the relay has to his work.... anyway....
my thing is 5 wires, +12V, -12V, GND, ND, PT100. i have a 24V powersuply, i know pt100 is temp and nd is for conductivity. but how do i have to make up a code to have a proper readout on my 16*2 LCD.
maby someone can help me