(MM) wild temp sensor readings


Author Message
centrex

Guru

Joined: 13/11/2011
Location: Australia
Posts: 320
Posted: 04:32am 13 Jan 2012      

Hi Pete
Your formulae is correct but are you running the temp sensors from the 5Volt supply as TassyJim has shown, GeoffG suggested using a 1.8K resistor but also cautions that the max temperature that can be read is 57degC, if want to read a higher temp you have to use a voltage divider into the input pin and then scale the reading in software.
Also a .001 cap on the input pin to gnd may get rid of some induced voltage.

To TassyJim now that you have had at least 5min to play with the CGMMSTICK what do you think of it.

regards
Cliff