Finished testing the battery on my compost sensor. An 18650 cell (2200 mAh) lasted 3 days when sampling every 15 seconds. This should be more than enough when sampling every 5 minutes for a ~2 week hot compost cycle.
#compost #arduino #homeassistant
#compost #arduino #homeassistant
(60C and 992 are the dynamically generated unique IDs for each sensor)
All it took was a weekend of hacking and a PR for the arduino-home-assistant library. But now I can add as many sensors as I want with having to hardcode or update anything on the base station. Just upload the TX sketch onto a new board and go.
Temperature measurement is the priority, but this capacitive moisture sensor might be useful to watch for the outside of the pile drying out. It also includes an air temperature sensor that should provide some insight into how the piles perform in different seasons.
#compost #arduino #homeassistant #grownostr
#homeassistant #compost
I added an elbow to the chimney intake and extended it horizontally to the end of the bench. This should help distribute the heat more evenly in the bench, and might allow extending the bench length later.
#permies #rocketstove

#breadstr
These turn into black liquid after being picked or getting too old. The process is called deliquescence and helps the mushroom distribute spores. Both the fresh mushroom and liquid are edible. The liquid can also be used as ink.