Lm 35DZ

[GianGian]

Hi all,

I used the arduino  thermistor example in labview.

I have an Lm35DZ with 3 pin so the schematic of the example isn't the same because change the pin.

I put the pin 1 to arduino +5V

Pin 3 to arduino gnd

Pin 2 is output of thermistor,so I connected it with a 10k resistence to ground of bread board,and another wire from output to analog 0.

The problem is that I read in labview -30Celsius!!

Anyone know why?

Thanks

[dale60]

1. Have you tried measuring the output directly using a multi meter against a known temperature?
2. Also apply a known voltage to analog 0 and see what your program reports back.

We could help you better if you posted your code.

Regards.

[GianGian]

hi,

thanks for reply.

I tried with multimeter and work well but I haven't tried sending a known voltage to analog 0,I'll try

Thanks

[GianGian]

The code is simply the thermistor example of arduino toolkit!