I am using serial sensors to read C02 on RPIs(A+), currently I have python scripts that dump the outputs to a text file. And then use matplotlib to graph to a png file which is called in the cgi-bin… it works well but can be slow on the pi (I have started to dump the txt into a VM and plot the graphs here, its much quicker).
Is there a way that I can get this data into Cayenne, either directly via the script that works with the serial sensor(some sort of library?) or can I give cayenne a txt file location (with readings on each line) and I can use the graph widget to output this to the console? I will need many months, possibly years of history to be recorded.
This will become quite a big project in the end as I am working on an IOT sensor project for architects who want to find out if there buildings perform as designed. And will involve C02, VOC, Temp, humidity and dust. It may also collect some form of seismic/vibration recording as well. I suspect more than one RPI may be involved (but the dashboard is GREAT for that).
here is the sensor I am using currently, they seem to be quite accurate and have been reliable.