Well Cleaners Early Warning System(EWS)

The Well Cleaners Early Warning System (EWS) operates by integrating gas sensing, distance measurement, and microcontroller processing to monitor hazardous underground environments. At the core of the system, an ESP32 DevKit v1 or Arduino R4 WiFi module continuously samples analog and digital inputs from MQ-4 (methane), MQ-7 (carbon monoxide), and MQ-136 (hydrogen sulfide) gas sensors. When these chemical sensors detect dangerous concentrations of toxic or flammable gases, their internal resistance changes, generating a proportional analog signal read by the microcontroller. Simultaneously, an HC-SR04 ultrasonic sensor measures the depth or distance within the well space using trigger and echo sound waves. Power management is handled via 3.7V Lithium-Ion cells regulated by a TP5100 charger module, an MT3608 step-up module, and an LM2596 voltage regulator, ensuring stable voltage rails for the digital logic and sensors. A TL431 regulator provides precise voltage referencing. When a hazard threshold is breached or system parameters change, the microcontroller triggers local visual and auditory alerts via 3mm LEDs and a 5V buzzer, while simultaneously updating status readouts on an OLED display. User inputs are managed through pushbutton and toggle switches. Optionally, an L298 driver board and a 100RPM gear motor can be integrated for mechanical actuation or automated deployment mechanisms. All components are wired across prototyping dot boards and housed within a durable structure composed of PVC pipes and Forex sheets.