Design of Intelligent Energy-Saving Controller Using Faucet

Abstract

An auto-controlled faucet module is proposed to monitor the water temperature and water level in the bathtub through the Android phone APP. This research is based on a single chip. The power of this module is supplied from two 18650 rechargeable lithium batteries in series as 7.4 V, and LM2596 is used to supply step-down 5V to ensure that there is no safety concern in the bathroom. 2 servo motors are adopted to drive the water volume and water temperature control of the faucet in PWM mode with temperature sensor and water level sensor in the bathtub. The Bluetooth transceiver module is used to transmit the water temperature and water level information to the Android phone in real-time. Users use the mobile APP to grasp the information in the bathtub in time. By using a single chip, the action of the bathtub faucet is controlled via a mobile phone APP, thereby saving water, electricity, gas, and time.