The PSoC range finder is a low cost and simple ultrasonic distance meter which can be used for contactless liquid level measurement, generic distance measurements, and robotics positioning.
A PIC18F452 microcontroller is the basis of the project as it runs at 4MHz while displaying auto-memory in all high and low values without any predicament.
The ioBridge water meter is made to be connected in the home’s incoming water line where a switch is flipped for each gallon of water travelling through the device.