Condensed Water Atomiser For Air-conditioners

The Condensed Water Atomiser system uses an Arduino Uno board combined with power electronics and sensor feedback to manage wastewater from air-conditioners. Power is supplied via a 15V step-down transformer connected to a bridge rectifier, which converts the AC voltage into DC. A 1,000µF capacitor smooths the rectified output before it reaches the 12V voltage regulator (IC1) and a 1µF capacitor to provide a stable operating voltage for the circuit. The Arduino Uno acts as the central processor, monitoring water levels using the SEN18 water-level sensor. When water reaches a sufficient level, the Arduino triggers a 2N2222 transistor (T1) configured as a switch, which in turn energizes the 12V relay (RL1). This relay controls power to the ultrasonic atomiser disk (L1), vibrating it at high frequencies to instantly vaporize the condensed water into mist. Two 5mm LEDs (LED1 and LED2) driven by a 2.2kΩ resistor (R1) serve as visual indicators for power and operational status. The system is programmed using the Arduino IDE with the Ultrasonic_Atomizer.ino code, automating the entire evaporation process without manual intervention.