Liquid Flow Meter - Brass 1/2" Nominal Threaded SF_Raspberry Pi Boards The Pololu USB-to-serial adapter is

The Pololu USB-to-serial adapter is great for connecting microcontroller projects to a personal computer

10-color ribbon cable

Standard 4-pole TRRS headphone jack

Wi-Fi Compliant

Solder in the included USB connector and you can plug in any iPhone or iPod for 500mA charge rate

Liquid Flow Meter - Brass 1/2" Nominal Threaded SF_Raspberry Pi Boards The Pololu USB-to-serial adapter isMeasure liquid water flow for your solar, computer cooling, or gardening project using this handy basic flow meter. This sensor sits in line with your water line, and uses a pinwheel sensor to measure how much liquid has moved through it. The pinwheel has a little magnet attached, and there's a hall effect magnetic sensor on the other side of the brass tube that can measure how many spins the pinwheel has made through the metal wall. This method