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  1. J

    Thermostat with lm35: help finding out the error

    I inverted a polarity (duh!) so I'm getting a constant +4/5v from the first opamp, and a constant 8.45 from the second (obs: I'm not using a 1m pot as in the scheme, but a 100k) I need to make the comparation work so that when the temp is lower than the voltage divider, nothing comes out of...
  2. J

    Thermostat with lm35: help finding out the error

    done
  3. J

    Thermostat with lm35: help finding out the error

    Hello all I'm trying to build a thermostat with 2 opamps, the first amplifies the analog voltage and the second as a comparator. the comparator should give me a v output whenever the ref (coming from the voltage divider) is higher than what's coming out from my Lm358 configured as hysteresis...
  4. J

    hello

    Hello, I'm joe and I'm italian. I'm a newb trying to apply what I've learned at school
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