| Item | Qty | Unit Price (₹) | Subtotal (₹) | Notes / Description |
|---|---|---|---|---|
| ESP-01 (ESP8266 Module) | 1 | 100 | 100 | Wi-Fi microcontroller for IoT communication |
| Base Connector for ESP-01 | 1 | 60 | 60 | Breakout/adapter board for ESP-01 |
| Water Level Depth Detection Sensor | 1 | 80 | 80 | Analog output sensor compatible with Arduino |
| Buck-Boost Converter | 1 | 160 | 160 | DC-DC converter providing regulated 3.3V output |
| Lithium-ion Battery (18650, 2600 mAh) | 1 | 170 | 170 | Rechargeable power source |
| DC Adaptor (5V / 1A) | 1 | 100 | 100 | External power supply adaptor |
| MOSFET Switch IC (for power control) | 1 | 30 | 30 | Controls power distribution to modules |
| DC Jack (for adaptor input) | 1 | 20 | 20 | Standard 2.1 mm DC power jack |
| 2-Pin Connector (for Li-ion battery) | 1 | 10 | 10 | JST-PH or similar connector |
| Capacitors | 5 | 2 | 10 | Used for voltage filtering and stabilization |
| Resistors | 10 | 1 | 10 | Used for biasing and signal conditioning |
| PCB (Custom Circuit Board) | 1 | 75 | 75 | Fabrication cost of PCB |
| Assembly / Soldering Cost | 1 | 100 | 100 | Labour cost for assembly and wiring |
| TOTAL COST | ₹1,015 | (Approx. total for one complete unit) |