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Wind Sensor Rev P

€24.50

No more waiting, new batch released from QA late today 13Apr:

A compact anemometer sensitive enough to detect human breath. A refinement of the popular Wind Sensor Rev C, this design incorporates hardware ambient temperature compensation. An accurate temperature reading is made available on the interface. Based on the time-proven "hot-wire" method, this technique excels at low to medium wind speeds. Great for sensing weak indoor air movement, where the spinning cup anemometers are ineffective. 

Developed by our colleagues over at Modern Device USA, the design and application details are here.

The PCB is fully assembled and packaged complete with loose 5pin male headers for a choice of mounting vertically or horizontally.

Note that as well as the usual logic level voltage, you need an additional power feed to supply the heating current (8-12V, ~40mA depending on wind speed).