👣 Calculate your carbon footprint easily using a command line interface (10+ metrics, .PDF report).

Build a simple device that warns if CO₂ concentration in a room becomes a risk for COVID-19 aerosol infections.

CO2-Sensor with VZ89-TE and WIFIKIT32

Online tool for calculation of seawater carbonate chemistry system based on Seacarb R package. The mathematics behind is based on great book "CO2 in seawater: equilibrium, kinetics, isotopes" published in 2001 by Richard Zeebe and Dieter Wolf-Gladrow

raspberry-based solution to sniff the air

Build a simple device that warns if CO₂ concentration in a room becomes a risk for COVID-19 aerosol infections.

Readout of various CO2-Sensors for comparison

Sistema de monitoramento de concentração de CO2, permite relacionar os dados com a circulação de ar e assim mostrar o quão apto o ambiente está para ser utilizado na pandemia.