In SX Microcontrollers, SX/B Compiler and SX-Key Tool, mardor wrote: I have tried.... continuous reads with Rdtmp command (0xAA) 1-shot reads with Rdtmp command (0xAA) (to eliminate internal heat effects) 1-shot reads with Rdtmp (0xAA), Rdcnt (0xA0), and Rdslope (0xA9) (higher accuracy) In all cases the temp (as compared to 3 other thermometers within a few inches) is 1.5 to 2.5 degrees too high (Farenheight). I have 4 1620s and they all read high. I have 2 SX chips and see no difference I have also isolated the 1620 via cable from PCB (eliminate heat effects) I have also tried tweeking the supply voltage up/down 0.1-0.2V I have also looked at output temp (raw 9 bits) ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=246306 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)