SNAU250 November 2020 HDC2010 , HDC2021 , HDC2022 , HDC2080
After power up, the HDC20XX is in sleep mode waiting for I2C command input. To configure the device to collect both the humidity and temperature data in a single acquisition mode, select TRIGGER ON DEMAND in the CONFIG register (0x0E), select the desired temperature and humidity resolutions and the temperature + humidity measurement configuration in the MEAS_CONFIG register (0x0F).