Goldfish Aquarium Automation and Monitoring Based on Internet of Things

The use of water quality for fish in the aquarium must be maintained, because it will affect the growth and health of fish. Water quality parameters that can be used as a reference for goldfish are temperature 25-30°C and pH 6-9. Feed is a problem that can affect water quality and fish growth, where goldfish are opportunistic predators that will continue to eat and result in a lot of dirt. With the development of technology then designed an automation system that can regulate fish feeding, by adjusting the volume and time of feeding with the ability to adjust temperature and pH that is safe for goldfish, combined with an Internet of Things (IoT) system for monitoring feed, temperature, and also pH using the Blynk platform. The automation system is designed using a temperature sensor DS18B20 and a water heater as a temperature stabilizer, which is at a range of 25-30°C, a pH4052C sensor and an air pump as a pH stabilizer to make it safe for fish, namely pH 6-9, ultrasonic sensor HCSR 04 and servo as a detector. feed and fish feed. This system runs automatically controlled by the Arduino Mega 2560 microcontroller, assisted by the Node MCU ESP8266 as the link between the controller and the smartphone. Sensor reading data is sent and displayed on the Blynk application in real time