https://clement.n8r.ch/en/tags/mqtt/Recent content in Mqtt on n8r | ClémentHugo -- 0.165.0en-USSat, 11 May 2024 06:17:14 +0200https://clement.n8r.ch/en/articles/connected-farm-fence-bot/Sat, 11 May 2024 06:17:14 +0200https://clement.n8r.ch/en/articles/connected-farm-fence-bot/<p>This article again covers a topic related to my wife&rsquo;s family farm, but this time, instead of <a href="https://clement.n8r.ch/en/articles/connected-farm-milking/">exporting milking data to Grafana</a>, I will detail my usage of <a href="https://michael.stapelberg.ch/">Michael Stapelberg</a>&rsquo;s amazing <a href="https://gokrazy.org/"><code>gokrazy</code></a> project, which made it possible to reliably develop Go software to control fences around the farm.</p> <h2 id="fences-and-cows-">Fences and Cows 🐄</h2> <p>The farm is distributed on 2 sites, and on each site there are rather long electric fences, in which the cows happily pasture during the day (and for the heifer&rsquo;s fence, also during the night). <br> To prevent the cows from escaping the fences and e.g. eat our neighbour&rsquo;s grass (which is always greener, as we all know), the fences are electrified ⚡️ with high voltage (6000V) impulsions every second.</p>