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Sunday, March 22, 2020
Tasmota-based multi-channel air quality sensor station
The sense of smell is an amazing function in vertebrate animals. Even the human nose, which is not particularly notable in comparison with other animals, is fascinating in its sensitivity to trace amounts of a large variety of substances. It has a level of selectivity and capability of distinguishing between different kinds of smells, which is very difficult to match by even the most sophisticated artificial sensors.
Having as the main motivation the enrichment of the IoT gadgetry sitting around in my house (and eventually fill up an entire 192.168.1.1/24 network address range), I found that (after the motion and entrance detection device), an interesting device to invest time on would be something capable of sensing multiple air quality parameters at the same time.
Tuesday, January 21, 2020
Trying to make the most out of Home Assistant + rooted Xiaomi vacuum cleaner + Valetudo
One feature that I fancied for some time was the ability to define zones, and instuct the robot to go to these predefined zones on demand.
Sunday, December 29, 2019
Ghost switching can be a bitch if your switch is your main circuit breaker
On my way to eat my own dog food, I learned the hard way that ghost switching is kind of the default problem most people will stumble upon when setting up their MQTT switch for the first time.This is not a big deal when you are configuring a single light switch or some other not so critical appliance. But when your switch is in series with your main circuit breaker, ghost switching suddenly gains a whole different level of importance.
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