System and method of reading and writing operating parameters and data for a control device

A sensor faucet, comprising:

• a system for reading and writing operating parameters and real-time data for a sensor or controller, the system comprising:
• a power source;
• a read/write device powered by the power source, the read/write device configured to conduct modulation of the power supply voltage based on a predetermined encoding mode;
• a control device powered by the read/write device, wherein operating parameters and data information are exchanged between the control device and the read/write device, and the control device is configured to conduct demodulation of an output voltage transmitted by the read/write device;
• and
• power lines electrically connecting the power source to the read/write device and the read/write device to the control device.

A method for reading and writing the operating parameters and real-time data of a control device, the method comprising:

• providing a power source;
• powering a read/write device with the power source;
• causing the read/write device to conduct modulation of the power supply voltage based on a predetermined encoding mode;
• powering a control device by the read/write device;
• causing the control device and the read/write device to exchange operating parameters and data information, and to conduct demodulation of an output voltage transmitted by the read/write device;
• and
• providing from the power source by one or more power lines.