Tony is a Geek

I just forced myself to do an initial inventory check of the "toys" I have in my current "to hand" tech-cave.  I need to draw a picture.  and I'm going to be a rebel and NOT use UML, just cos... (it'll probably end up looking very UML-like, but shush, don't tell the rebel part of my brain that)....so, where are you draw.io (oh it has a new name now, I must remember that) Not that I use the online version, I use the installed offline version - y'know, cos I'm old-skool and (insert lots of reasons here and move on). Okay, I've gone even more old skool and used a pen & paper (I missed a few, believe it or not!), I'll do a digital version later: What am I actually "doing" with these devices? Well a variety of things... okay, nothing really all that useful.  They were purchased / used for various tasks at a specific point in time.  For instance the Pi Zero was bought when it was the latest thing and I naturally bought two, I use...

Actually, this isn't exactly related to the Solar Powered pond... it's more to do with the collection of DATA and viewing it. Previously, I was using a node-red dashboard to output the current / live status of the data fetched (via modbus) from the MPPT controler.  This worked a treat...however.... it did tend to crash after a day or so.  Digging a bit deeper; whilst I was saving the data to a stats.csv file (gets re-created upon the RPi restart), this was always a temporary solution and the data should be saved into an InFluxDB... turns out the node-red charts are okay for showing data "for a bit"... but not the 1000s od data points I was giving it every second for days on end, something has to give... analysing the webpage content, the dashboard could grow from a 20-ish MB page up to 400+ MB page; just to show live data. Something had to be done about this....and well, a midday overcast Sunday proved to be the solution. Behold GRAFANA presenting data from an InFluxD...