In an MSR reaction appears to have no impact when either applied to the group 'Everywhere' or a specific device. X_vera_svc_bochicchio_com_VeraAlexa1.SetVolume Asking an individual echo device to state its volume after the announcement gets the response 'This device is at volume 4' So a message to group 'Everywhere' with Volume 40 is announced. After a few hours of work alongside an electrical engineering buddy this week, my home garden drip system became powered by a Raspberry Pi. TTS announcements are made with the correct volume. Hardly a big deal, and likely user error.
In a subsequent post, I'll give a glimpse of its capabilities. It presents a web page which looks like a fairly typical Interactive Development Environment (IDE) and contains some primitives which allow basic access to the Luup engine. I have an early prototype running (written in Lua, of course). So, just for fun, I'm developing a CGI plugin for describing openLuup actions in Prolog. Thanks to some relatively recent research A Hitchhiker’s Guide to Reinventing a Prolog Machine, Paul Tarau (2017) it's become possible to implement a very efficient Prolog engine in a reasonably concise way. Perhaps one of the most famous, and venerable, is Prolog, which had its fiftieth birthday last year in 2022. It's always seemed to me that the 'best' way of describing logic would be a language designed for that purpose – a "logic programming language". For this reason, there has been a long development history of plugins with their own "language" to help define the automation logic: PLEG (for those with a long memory), AltUI workflows, Rules Engine, Reactor, MSR. If it doesn’t receive an off command in that time, the device turns off the valve on it’s own. Set a max time that the sprinkler is allowed to run. Whilst I've always been a fan of the Lua language, as used in Vera (and openLuup) for scenes and plugins, it's perhaps not ideal. Given that OpenSprinkler is open source, maybe a fail safe could be added to the device itself similar to your timer. Home Automation means you have to have a way of describing the logical steps you want your home to implement automatically.
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