NXP connectivity solutions for smart metering address the challenges smart cities face for reliable, secure communications for remote metering and home energy management. We enable remote metering with NAN technologies like IEEE 802.15.4 and Wireless MBUS. Additionally, NXP fosters smart energy management inside homes with HAN technologies like ZigBee.
Flow meters help smart cities measure the volume of water at a specific time or over a long period. The measurement is then displayed on low-power segment LCDs, often driven by segment LCD drivers on an MCU. Advanced flow meters incorporate RF communication interfaces for connecting to one-way or two-way RF meter reading systems.
This application note shows how to build a low-power encoder based on the magneto resistive sensors. The goal is to build a very low-power/low-rotation speed design which may be used in the paddle wheel flow meters to measure paddle wheel rotation.