Thank you @eiten for you suggestion. I will try it.
I wanted to be independent from HA, just as a fail safe in case of problems.
I am not relying on the time keeping of the arduino, but on a real time clock module.
@Tmaster What I meant by my previous comment was to tap on the Node name to see what sensors were connected - Had you clicked on TANQUE you would have seen a box pop up below giving you all the children to that particular Node with what value was last updated and when, so you could easily have found out all about your mysterious 13 children.
At least you have it sorted now, but it pays to do a bit of housekeeping in the sketch setup and Domoticz - eg which of the 6 "Unknown" Nodes is the one you want to next have a look at ?
All my Node IDs are set at the Node, and the sketch name labels the Node ID also, the Nodes are named in Domoticz for easy identification.
In the sketch my sensors are numbered sequentially and commented on what they are, so naming them in Domoticz becomes very much easier.
Hello@jemish
Yes, it is possible to create a smart water level detector for your home water tank using an ultrasonic sensor or a float switch connected to a microcontroller with wireless connectivity.
@skywatch said in Awesome tip: run LinuxFX instead of Windows!:
@NeverDie Thanks - Interestingly they show a free version on their site still. Did they revert due to bad publicity?
https://www.linuxfx.org/
I stopped following it, but I seem to recollect that the free version was noticeably missing things--otherwise, who'd buy the paid-for version? Anyway, its standing on Distro-watch has fallen considerably. It may seem unfair to niche distros, but I think it's generally better to stick with the more popular distros, unless you have good reason to choose otherwise.
Of possible interest: Here's a guy who is building an inexpensive open source ethernet controller for stepper motors:
What happend to Ethersweep? Project Update! – 12:36— Neumi
If you listen to the end, it's revealed that there is now generous funding available which allows people to do this kind of open-source development as a full time job, which is what he is now doing. For that reason, I think there's a good chance he will complete his project within the allowed 6 months., and so by the deadline it will likely be nicely polished.
Some humidity sensors are known to lose accuracy with age. For instance, the Si7021 is known to have this problem. If that matters to you, then the best choice is to pick sensors that have datasheets and which have specs as to their expected longevity or accuracy over time. Then buy from mouser/digikey to be certain you're getting the real thing rather than factory rejects or counterfeits.
For extra insurance, I avoid electrolytic capacitors entirely whenever possible. I buy only 7XR rated ceramic capacitors that are overspec'd. The difference in price is small compared to a failure down the road.