Pages: [1]   Go Down
Author Topic: lm35dz  (Read 405 times)
0 Members and 1 Guest are viewing this topic.
0
Offline Offline
Newbie
*
Karma: 0
Posts: 1
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

hello sir,
   i am using lm35dz for temp. mapping but i can not get mv in o/p. so what is the proper circuit to measure it.  
Logged

Global Moderator
UK
Offline Offline
Brattain Member
*****
Karma: 291
Posts: 25898
I don't think you connected the grounds, Dave.
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

With a 5V analogue reference, you should get about two counts (5 / 1024 = 4.88mV / count) per degree on an analogue input pin.
If you need to measure temperature below zero Celsius, you'll need to offset the negative voltages.
« Last Edit: September 14, 2009, 04:45:22 am by AWOL » Logged

"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

Pages: [1]   Go Up
Jump to: