Temperature Monitoring System and pH Control of Catfish Breeding Pond Water Based on NodeMCU 8266 with Telegram Bot Notification

This research presents the design of a temperature monitoring and pH control device for catfish nurseries. The range 6.5 to 8.5 with 27℃ 31℃ is optimal condition farming. However, water quality can decrease due unstable conditions changes. In this case, periodic necessary maintain stable conditions. tool constructed monitor using DS18B20 sensors, pumps, Node MCU 8266, telegram application. applied stability water; carried out new replacement method when value over normal limit or in acid alkaline state. by utilizing pump circulation process. When all components are well integrated into system, including whole program, then testing out. Testing on begins turning running system observing system's performance, dipping sensor probe water, data displayed LCD. Furthermore, if an state, will be active carry process circulating replacement. output measurements LCD Telegram notifications sending messages statuses Telegram.