I'm from a compost tech startup (Monty Compost Co.) focused on making composting more efficient for households and industrial facilities. But our tech isn’t just for composting— it’s a versatile system that can be repurposed for a wide range of applications. So, we’ve made it open source for anyone to experiment with!

One of the exciting things about our open-source compost monitoring tech is its flexibility. You can connect it to platforms like Raspberry Pi, Arduino, or other single-board computers to expand its capabilities or integrate it into your own projects.

Our system includes sensors for: * Gas composition * Temperature * Moisture levels * Air pressure

All data can be exported as CSV files for analysis. While it’s originally built for monitoring compost, the hardware and data capabilities are versatile and could be repurposed for other applications (IoT, environmental monitoring, etc.)

Hacker’s Guide to Monty Tech: https://github.com/gtls64/MontyHome-Hackers-Guide

If you’re into data, sensors, or creative tech hacks, we’d love for you to check it out and let us know what you build!

Ohh, interesting. I’ve long wanted to do an adjacent project, that is, creating a monitoring system for plants. Like, a single spike in the pot that measures soil composition, nutrient levels, moisture, wind speed, light exposure, humidity, etc. to give both plant care recommendations and optimise growth. Never got around doing it tho…

Do you have recommendations for buying sensors?

I love it, but surely just a temp gauge for running a hot compost is nice & simple? If mine is over 45C, I'm fairly sure that means the thermophiles are present and doing their thing

Adding to the main post--

You can check out the Monty Monitor here: https://montycompost.co/products/im-perfect-monty-monitor

Haha, I actually did a project on this last month with arduinos. Cool to see an open-sourced project for this

Do you know if anyone is writing a HomeAssistant integration for this?

collectd is an open source monitoring system which can record to e.g. RRD flat files or SQLite and can forward collected metrics to SIEM-like monitoring and charting and anomaly detection apps like Grafana or InfluxDB.

Nagios has "state flaping detection" to prevent spurious notifications.

collectd-python-plugins includes Python scripts for monitoring humidity and temp with i2c sensors and Python: https://github.com/dbrgn/collectd-python-plugins

There are LoraWAN soil moisture sensors, but they require batteries or an in-field charging method

"Satellite images of plants' fluorescence can predict crop yields" (2024)

"Sensor-Free Soil Moisture Sensing Using LoRa Signals (2022)" https://dl.acm.org/doi/abs/10.1145/3534608 .. https://news.ycombinator.com/context?id=40234912

/? open source soil moisture sensor: https://www.google.com/search?q=open+source+soil+moisture+se...