Two of my Aquariums controlled by a Raspberry Pi. The Pi is controlling and displaying the White and Colour lights for both Aquariums as well as displaying the temperature of both tanks and the room temperature. Lights are shown as 1 for ON 0 for OFF
Raspberry Pi Zero W + DS18B20 + BH1750FVI sensors monitoring aquarium water temperature and lighting
Test feed running on a Wemos D1 mini (esp8266 variant) with a DHT22 for room temp/humidity data and a DS18b20 for the tank temperature. PWM control of tank lighting is handled locally. Light levels may follow at some point.