Design and Implementation of a Solar Powered Floating Device for Water Quality Monitoring in Inland Aquaculture Farms Using LoRa Wireless Communication G. Mageshkumar , Saggurthi Prabhakara Rao, S. Suthagar , K. Hemalatha, K. Gowtham, and T. Hariharan Abstract Inland fish farming is one of the growing food industries in India. The potential of this sector in creating an impact on the growth of the Indian economy is not yet realized. The Government of India is constantly focusing on various oppor- tunities to build a self-reliant nation. Fish is one of the major foods consumed by the people of Southern India. Improper maintenance of aquafarms leads to health prob- lems for the people who consume fish from these farms. In this paper, the types of fish farming, the challenges, threats, and recent remedial actions taken to overcome the challenges are discussed. A low-cost water quality monitoring system (WQMS) based on long-range wireless communication (LoRaWC) powered by a solar panel that floats on the water is proposed to improve the yield and quality of fish from the aquafarms. The sensor node is designed to measure pH level, turbidity, total dissolved solids (TDS), atmospheric temperature, humidity, and water level. The measured values are transmitted to the cloud through a LoRa gateway for taking necessary decisions to maintain the water quality in good condition. This method improves the growth and health of the fish in the aquafarm which in turn provides healthy food for mankind. Keywords Aquaculture · Fish farm · Internet of things (IoT) · LoRaWAN · pH sensor · Solar powered LoRa node · Total dissolved solids (TDS) · Water quality monitoring system G. Mageshkumar (B ) · S. Suthagar · K. Hemalatha · K. Gowtham · T. Hariharan Kongu Engineering College, Perundurai, Erode 638060, India e-mail: magesh.me.est@gmail.com S. P. Rao Joginpally B R Engineering College, Hyderabad, India © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2023 S. Smys et al. (eds.), Inventive Computation and Information Technologies, Lecture Notes in Networks and Systems 563, https://doi.org/10.1007/978-981-19-7402-1_49 687