A smart IoT-based water quality testing kit using ESP32, Raspberry Pi, and an ML model to predict bacterial contamination (% CFU in water samples). Detects pH, TDS, temperature, turbidity, and bacterial presence via optical sensors.
A modular BLE-enabled water quality monitoring platform using the Nordic nRF52832 featuring pH, TDS, turbidity, and temperature sensing with professional PCB design in KiCad.