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5g (without batteries)
The voltage will range from 0
The PN532 is also very flexible
Like all Feather 32u4's you get:
the battery pack will eventually go empty
Anemometer Wind Speed Sensor w/Analog Voltage Output Fluid control 5g (without batteries)An anemometer is a device used for measuring wind speed, and is a common weather station instrument. This well made anemometer is designed to sit outside and measure wind speed with ease. To use, connect the black wire to power and signal ground, the brown wire to 7 24VDC (we used 9V with success) and measure the analog voltage on the blue wire. The voltage will range from 0. 4V (0 m s wind) up to 2. 0V (for 32. 4m s wind speed). That's it! The sensor