Pascal wrote: > I am looking for a low cost Temperature Sensor... =20 > I found the LM86, it is USD 1.99$. Do you know=20 > an IC or a way to mesure temperature that is very cheap? Please, do search PICList with "Temperature Sensor" Anyway, have look at Microchip's TCN75 2-Wire Serial=20 Temperature Sensor and Thermal Monitor (21490b.pdf). Features: Solid-State Temperature Sensing 0.5=B0C Accuracy (Typ.) Operates from -55=B0C to +125=B0C Here in the Ukraine local Microchip folks sell them for $1.24 retail. Mike. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.