Equipamento de baixo custo para monitorar temperatura e umidade de forma contínua e remota: aplicação na compostagem

Abstract

This work had the aim to monitor a small scale composting process with a low price of making, using food waste of a house with three residentes and dry leaves. The composter was made of plastic. In this work, two essential parameters were watched which influence the composting process (temperature and moisture) and its efficiency as the time passes. The monitoring of the temperature and moisture composter was uninterrupted and the electronic equipment could watch the process remotely and with low cost involved. This equipment was based in IoT technology and it was made specifically for this project with the main purpose of collecting and keeping the most date as possible during the composting process. The monitoring of the physical changes was made during 51 days. The average of the three temperature sensors reached close values to 29,8 ° C, with the highest one of the 41,4 ° C between the 5 and 7 days of monitoring. The average of the three moisture sensors reached close values to 30%, with the highest one of the 50,7% between the 30 and 35 days of monitoring. The equipment worked with few interruptions for 54 days, showing efficiency and reliability.