Smart Pump Controller
Key Features:
Core Functionality
- Automatic ON/OFF Control : Operates the water pump automatically based on
tank water levels or preset schedules.
- Manual Override Mode : Allows manual control via buttons, Bluetooth app, or physical switch.
Time-Based Scheduling (RTC Integrated)
- Real-Time Clock (DS3231) : Ensures precise time-based operations even during power failures.
- Multiple Schedules : User can set start and stop times for daily or weekly pump operations.
- EEPROM Memory Storage : Retains all user settings and schedules even after power loss.
Safety & Automation
- Dry Run Protection : Detects when there’s no water in the source and automatically stops the pump.
- Tank Overflow Prevention : Stops pump when the tank is full using float sensors.
User Interface
- LCD Display (16x2 or 20x4) : Shows time, status, and operation modes clearly.
- Push Buttons / Keypad : Easy local setup of schedules and modes without needing a phone.
Power Management
- Low-Power Standby Mode : Minimizes power consumption when idle.
- Relay-Based Pump Control : Reliable and electrically isolated switching for motor operation.
Technical Specifications:
Parameter ---- Specification
Power Source ---- AC mains (230V AC)
Pump Control Output ---- 2-channel relay (12V/ 7A)
RTC Module ---- DS3231 with battery backup (CR2032)
Display ---- 16x2 or 20x4 LCD (HD44780 compatible)
User Interface ---- 4-push buttons (Menu, Up, Down, OK)
Sensor Inputs ---- 2–float switches or water level sensors (tank/borewell)
Alert System ---- Buzzer
Clock Accuracy ---- ±2 ppm (DS3231 RTC)
Operating Temperature ---- 0°C to +70°C
Enclosure ---- ABS or Polycarbonate casing with panel-mount LCD window
