I used to live in front of a beautiful but polluted lake in Londrina city. Now I live in Curitiba city, some say, the most ecological Brazilian city.
Urban socio-environmental problems identified in Curitiba includes air pollution, water pollution and environmental degradation (references).
This project is developed with the objective of creating low-cost water monitoring stations, enabling the creation of a dense monitoring network with the capacity to locate occurrences of water pollution and contamination.
With community and educational purposes in mind, information about suppliers, configurations, and software are all open-source.
The current state of the project is hardware and software prototyping and testing. The first prototype (Igapó #1) was initially tested on the Atuba River, in a place known as Ecobarreira do Atuba and later at Igapó Lake 2 in Londrina city. Unfortunately, it did not stand the test of time, exhibiting defects after a few weeks of implementation.
This is the prototype when deployed at Igapó Lake 2:
This is the prototype when deployed at Ecobarreira:
The prototype in greater detail:
Inside the box:
- Atlas Scientific Wi-Fi Pool Kit (Legacy, with ESP8266). It has pH, ORP (Oxidation Reduction Potential) and Temperature probes and comes with Wi-Fi connectivity.
- LILYGO® T-SIM7000G. For cellular connectivity this low-power, low-cost board comes with Espressif's ESP32 microcontroller, SIMCom's 7000G cellular modem, battery holder and solar power circuit at around 300 Brazilian Reais.
- LILYGO® T-A7670SA R2. Similar to T-SIM7000G but this one have Cat 1 protocol support, enabling future connection to Starlink's "Direct to Cell".
Atlas Scientific has a broad range of probes, such as Conductivity and Dissolved Oxygen. Also, several other locations need to be monitored.
- Danos Socioambientais Urbanos Em Curitiba: Uma Abordagem Geográfica (PDF)