I found this link about the LM35 sensor. The link explained how to get the equation but I still don't get it. So, someone please explain to me how the equation comes. I don't understand how why the 100 is there in the equation. Let say for example the room temperature is 19 degrees. How do you apply this equation.
Also one more thing I found about the sensor says that " No matter what supply you use, the analog voltage reading will range from about 0V (ground) to about 1.75V." for LM35. I would like to know why that is if anyone knows.
yaantey:
Also one more thing I found about the sensor says that " No matter what supply you use, the analog voltage reading will range from about 0V (ground) to about 1.75V." for LM35. I would like to know why that is if anyone knows.
1.75v = 1750 mV = 175°C The LM35 is only good to 150°C so outputs above 1.5V (1500 mV) can't be relied on.