i used an LCD screen with an lm35 sensor and the temp. readings are SOOO wrong and this is not about the lcd screen i tested the lm35 on the serial monitor and its overly high like 35 degrees or 0 degrees i cant show a picture of the circuit right now but it tends to go to a random degree 21 35 etc. then drop back to 0
It works for me.
I think you forgot to add an Arduino.
Seriously, please read the "How to get the best out of this forum" sticky.
We can't help you if we don't have the full picture.
Leo..
Problem may exist in your circuit too. Please try according to this tutorial: Interfacing of LM35 with Arduino in Proteus ISIS - The Engineering Projects If it does not help, maybe it's a faulty temperature sensor.
Try running the Analog Read Voltage Example. (If you have a multimeter you can double-check/confirm the voltage.)
Check to see if the reading is changing with temperature, and then use a calculator or spreadsheet to make sure the temperature readings are correct.
The LM35 could be bad or it could be wired wrong. If you have a potentiometer you can connect in place of the LM35 (as shown in the Analog Read Voltage Example) and that can confirm if your Arduino, code, and display are working.