SHT31SHT31-DIS digital humidity and temperature sensor

SHT31-DIS combines humidity and temperature sensing with factory calibration and an I²C interface. A controller can request one measurement or select periodic acquisition. Each returned measurement word has its own CRC byte, allowing corrupted transfers to be rejected before the display or control logic uses them. The compact DFN package has eight perimeter contacts and an underside ground pad. A supply bypass capacitor and two bus pullups complete the basic interface. ADDR selects 0x44 or 0x45; the optional ALERT and reset connections support more advanced designs. This page covers the SHT31 digital variant. Follow its package orientation and keep the sensing opening exposed to the air. A fast bus transaction does not mean the physical humidity and temperature have changed equally quickly; airflow, mounting and nearby heat sources affect the reading.