The EnvStick is cheap, homemade temperature sensor that plugs into a USB port. It provides a simple way to collect a room’s ambient temperature. I made it for fun.
EnvStick Features:
– Temp sensor (+/- .5 deg C)
– USB 2.0
– Windows/Linux software
– Poll up to 100 times/minute– In-circuit programming– Only 11 components– Indicator LED
The EnvStick shows up as a serial port – a COM port on Windows boxes. Here you can see the typical output (on a program like Hyperterminal) – it waits a specified number of seconds, spits out a temperature reading, and starts waiting again. If you press “p”, you can set the number of seconds in between each temperature reading.
