Publication Year | References | Area of Study | Parameters monitored | Controller used in system | Communication unit |
2013 | [37] | Water monitoring | pH, temperature, turbidity | PIC 16F877A | RF module |
2014 | [38] | pH, temperature, Flow, Conductivity, turbidity | PIC 16F877A | Zigbee module | |
2015 | [39] | pH, Conductivity, turbidity | PIC16F877A | RF module, Zigbee module | |
2015 | [40] | pH, temperature, turbidity, level water, Leak detection | PIC16F877A | Zigbee module | |
2016 | [41] | pH, temperature | Arduino | Zigbee module, | |
2017 | [43] | pH, temperature, dissolved oxygen | Not specified | Zigbee module | |
2017 | [44] | pH, temperature, dissolved oxygen, Turbidity, Ammonia, Nitrate | Not specified | Zigbee module, Wi-Fi module | |
2017 | [45] | temperature, flow, pH, conductivity, The Oxidation Reduction | PIC32MX220F032B | Zigbee module | |
2017 | [46] | pH, Conductivity, turbidity, water level | TICC3200 | Wi-Fi module |