Hard to believe the amount of time I’ve spent on this thing. I’m still too deeply buried in R&D right now to fully develop another full article on my thermostat but here is some info to add to the previous blog entry on the subject. My Node-Red/ESP-GO thermostat is now in operation with three stat heads, 2 in active service as one has an issue whereby it locks up occasionally, maybe once a day, maybe once every couple of days – unpredictable – a hardware reset brings it back – but I need to get to the bottom of it – the other two units don’t do that.
The 2.5w laser engraver turned out to be less of a blessing than it first seemed, thanks to it’s inability to handle clear Perspex (does a lovely job on coloured material) I’ve had to go back to traditional DIY techniques for this project.
While I’m here, I’ve just reduced the e-newsletter frequency as we’re getting ready for the summer exodus to the sun and that will impact my writing ability somewhat until early April when I hope to have lots of new toys to talk about.
I’ve now published updates to ESP-GO-3 using Espressif Non-OS SDK 3.1 – which in itself is still only on GIT at the time of writing but seems to work a treat. My thanks to helpers on the Espressif forum – I didn’t really need this for current projects but the 5K of saved iRam gives me bags of room for expansion, so now was as good a time as any to upgrade to the latest SDK. Perhaps in the summer I’ll take a look at a better web interface and more SSID options.
Some new visuals – here is my Grafana logging – accessible externally thanks to PIVPN as is the stat itself.
Above is my Grafana info screen – monitoring and logging the two stats (main and aux – I have a third on test, all have now survived power cycling both for the stats and Node-Red without failure or needing intervention) but I’ve seen dropout after 2-3 days needing power cycling on one of them so the jury is still out). I’m also monitoring (temperature in the hot water tank cupboard from the mains controller supplying on-off instructions to the air—source heating system.
Lots more below the line…