Marine Aquarium Temperature Controller and the IoT (Internet of Things)

This system monitors and controls the temperature in a marine aquarium. This system measures the water temperature in an aquarium and then uses a heater and cooling fan to control the temperature within a range of 25-27°C. The measured information is displayed on ThingSpeak which is an Internet of Things (IoT) service. In this way the user can access this information from any smart device. ThingSpeak is an IoT analytics platform that allows the user to analyse and visualise data that was collected. In the design additional features such as water level sensing and LED lights control are also included. The device measures the aquarium water temperature and in addition to showing it on “ThingSpeak” displays it on an LCD screen. Ambient room temperature and humidity are measured and displayed on an OLED screen in addition to ThingSpeak. This design is a compact design with most of the boards being interconnected modules. The main contribution of this work is that it enables marine aquarium hobbyists to procure a simple low-cost marine aquarium temperature controller. This controller enables the user to read the temperature in the aquarium and control this temperature from anywhere via the Internet of Things (IoT) application called “ThingSpeak”.