The LilyPad range includes a temperature sensor, which is a MCP9700 thermistor type sensor, used for measuring ambient temperatures. It has positive and negative power terminals, and a 's' terminal that you connect to an analogue pin on the LilyPad microcontroller. You set up the code in the same way as for other sensors, and read the value:( Code )
This does give a seemingly accurate reading (oddly enough I seem to lack any other kind of ambient thermometer), except that it fluctuates quite a bit. But in and around what seems like a decent value. I may have to do some form of averaging to smooth it out.
I was using the new Simple Board
, so thought I'd see if there was any difference using the Main Board
. There's not, exact same results. So my only other thought is that maybe the USB-power is fluctuating and skewing the results. Of course, I don't have a ready way of reading the values while it's solely on battery power, so I can't check. Interesting though. I wonder if anyone has seen this before?