I like to understand how things work, how to optimize a process or reduce efforts to achieve the same goal. In 2018 studying TinyML I discovered a new world that mixed environmental and technology issues.
Last year, we decided to purchase a compost bin in order to contribute to preserving and disposing of our incorrect waste, in order to reduce the impact that our family of 4 could have on our planet.
Being new to composting, we are learning some things in practice, and one of them was to understand why the worms "fled" at certain times from the box and looking for information I understood that some causes of this behavior could be, excess humidity, lack of oxygen in the compost or high temperature.
As a first step, I measured the temperature and humidity of the upper box every 1 hour, and it ended up coinciding that the discard increased the temperature and made them try to leave.
As future improvements I intend to:
- Replace the DHT11 sensor with the DHT22 (looking for greater precision);
- Place the sensor in the bottom box too, so we will have two measurements of temperature and humidity;
- Place a soil moisture sensor in the compost of the two boxes.
I have a panel that shows how much waste I put in the compost (I weigh it and enter it manually), showing the average month and year, periodicity that includes waste in the compost and others. Soon these temperature and humidity indicators will be integrated into this panel.
There are many improvements that I still have and that I can make in this project, seeking to learn more about my family's consumption habits and how to improve our relationship with nature.
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