Design and Implementation of Temperature and pH Monitoring Tools in Fish Pond Based on Arduino and Processing

Some aspects that are referenced in fish farming are the parameters of temperature, pH, and water depth. When the water quality of the pond is in good condition, the growth of fish will be better because it is in an adequate environment. Measurement of parameter values in fish pond water can be done using a manual measuring tool. Yet, in reality, growers must perform measurements with less guaranteed accuracy and cannot measure in real time and must use internet services. In addition, there are many technological innovations that can simplify the work of fish growers and minimize measurement errors and do not use internet services. The design of this tool includes hardware consisting of mechanical and electronic system design while software consists of NRF24L01 communication, transmitter, and receiver as well as processing. There are several aspects tested, namely communication between transmitter and receiver, level of accuracy of each sensor, data transmission result by transmitter and receiver, display result on Processing, and survey by fish farmer on this device. This is done to ensure that the tool can function optimally and does not require a lot of troubleshooting. The percentage of error factors in sensor measurements are 0.06% (water depth), 1.06% (temperature), and 1.50% (pH) so that sensor measurements fall into the appropriate category. The NRF24L01 + PA + LNA communication is proven to work well and is able to transmit data between transmitter to receiver in the state of unchanged data. The NRF24L01 + PA + LNA communication has limitations and distance resistance so it is necessary to adjust the PA Level according to your needs. Processing can display the results of parameter measurements in fish ponds in the form of meter scales.