DESCRIPTION
The sensing element is a Si-based microhotplate with a robust and highly sensitive metal oxide (MOx) chemiresistor. The signal conditioner controls the sensor temperature and measures the MOx resistance, which is a function of the gas concentration. The measurement results are easily read using an I2C interface with the user’s microprocessor, which processes the data. The device is ideal for monitoring and reporting air quality based on nitrogen dioxide (NO2) and ozone (O3) concentrations which are typical outdoor air pollutants. Free firmware is provided with algorithms based on machine learning containing an embedded artificial intelligence (AI). The algorithms are used to determine concentration levels and are calculated based on the Air Quality Index (AQI) output according to international standards. The ZMOD4510 can selectively measure nitrogen dioxide and ozone. With its Ultra-Low Power mode, the ZMOD4510 is an excellent choice for low-voltage and low-power battery applications.
Renesas Electronics
