Divers can verify the ratio of oxygen to nitrogen in their nitrox tanks ... He also added an ADS1115 16 Bit DAC between the oxygen sensor and the Arduino for fast and accurate readings over ...

Ever wanted to produce nitrogen ... the Arduino Uno board controlling the system. The air is dried by silica gel before entering the reactor, with the airflow measured by a mass air flow sensor ...

Related research result was published in Sensors and Actuators: B. Chemical. Nitrogen oxides are at the center of atmospheric chemical reactions and influence the concentration of ozone ...