3D Printing - Adding enclosure temperature sensor

Another article related to OctoPrint.


Having around some DHT-22 sensors used on the fHelper MQTT project and seen a direct support of them for OctoPrint, I decided to use them to measure temperature and humidity of the enclosure, handled by OctoPrint.
In this article the steps to add the sensor to the System.

The idea is to have OctoPrint capable to monitor the enclosure temperature.
It is assumed OctoPrint running over a Raspberry Pi.

fHelper on Node-Red

If using Node-Red to handle fHelper an algorithm to handle the alarm is needed.


Here a brief description of the algorithm implemented in Node-Red.
The server is controlling a LED on the client to notify the plant need to be watered.

Designing an HVAC monitoring system

Ideas - things to do

The HVAC (Heating, Ventilation and Air Conditioning) system, as many other systems, has the bad habit to broke down when most needed.

The idea is to design a monitoring system for HVAC capable to predict problems, with the less possible impact on the system, meaning that the monitoring system should be as much as possible independent from the HVAC itself.

Office gadget - the Fhelper

Ok, this is just for fun.