Tim, N9PUZ writes:
A while back you mentioned your club built up some of the bare bones Arduino boards. I’ve been using the Arduino for a while. Recently I needed to measure some temperatures. I discovered the Microchip MCP9700A in a TO-92 package. It’s $0.36 in single pieces from Mouser and will measure -40C to +120C.
I wrote an Arduino library for the MCP9700A sensor that’s released under a GPL license.The library functions will provide either Celsius or Fahrenheit temperatures for as many sensors as you have ADC ports. If anyone is interested they can download a copy from my blog.
There is an installable library, source code, and an example program.
Very cool. Thanks, Tim!