Research Article

A Low-Cost Sensor for Detecting Illicit Discharge in Sewerage

Table 1

Prices of the main components.

ComponentCost (€)ComponentCost (€)ComponentCost (€)

2 SFH 203 (photodiode)1.081 powerbank 5000 mah15.002 NSL-19M51 (LDR)1.88
1 infrared LED0.7312 resistance0.48PVC1.00
5 color LEDs0.75Microcontroller47.00Waterproof box5.00