TWO WIRE DIGITAL ULTRASONIC SENSOR USING BI-DIRECTIONAL POWER LINE COMMUNICATION

摘要

A circuit arrangement having a master microcontroller operably connected to a sensor for detecting a parameter. The sensor and microcontroller are connected to a power source where a microcontroller power line is connected between the power source and the master microcontroller. A power communications line is connected between the power source, master microcontroller, and sensor, wherein the power communications line carries power to the sensor as well as communication signals between the sensor and the master microcontroller.