Server Room Monitor

One of the problems of a server room is the temperature. With different equipment producing heat, this rises quickly. And if the air conditioning fails, it quickly stops everything. To predict these situations we can acquire one of several environmental monitoring systems in the market. Being a simple system, I decided to make a custom solution and build a server room monitor system. Thanks in advance for the support of PCBWay that provided all the necessary pcb’s.

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Aquarium Controller using nodeMCU and MQTT

For some time now I wanted to start automating parts of the house. Although several parties are already planned, I decided to start with the aquarium.

Currently the aquarium has two analog timers to control lighting and water filtration. The problem is that whenever there is a light fault, the timers change the lighting and filtering times.

To solve this problem, I decided to install a nodeMCU module, which receives water temperature data through a probe, controls lighting and filtering through a relay, and communicates with the Raspberry Pi that controls all IoT (Internet of Things) through MQTT (Message Queuing Telemetry Transport) messages.

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