Temperature sensor using LM335 and the Uno

Projects General Guidance
1

Hey everyone, I've been reading through the posts and everyone seems to be pretty helpful, so I figured I'd ask around here for some help with my current project.

I can't find anything majorly helpful on the subject, but I want to make a sensing circuit which communicates with the arduino and turns on LEDs depending on what temperature is read in. I have a circuit set up, but the programming just isn't coming together for me. I have Vo of the 335 hooked up to A0 on the analog inputs, but I have no idea how to start in on the code. I tried adding the "LM335" library I found, but that didn't seem to work, as I get errors when I try to upload to the uno. If you need more details, let me know, I'll try my best to explain what's going on with it based on what you want me to tell you. XD

2

Check out this tutorial from Adafruit. Temperature sensor tutorial - Using the TMP36 / LM35

3

I tried adding the "LM335" library I found

Where did you find it? Where did you install it? Did you restart the IDE after installing the library?

that didn't seem to work, as I get errors when I try to upload to the uno.

Seems like the answers to some of the previous questions are "no" or "in the wrong place" or "no".

What errors?

If you need more details, let me know

Well, yes, we do.

4

Got two of these sensors recently, 10mV/K ==> aprox 0.5 degree accurate with default analog ref.

Datasheet - Temperature Sensor - LM335A - SEN-09438 - SparkFun Electronics -

First experiment gave no good results, think I missed something, or the sensors are broken.

Have to check a pair of AD592's too today - 1mV /Kelvin (use the internal 1.1V)