sht11是集温湿度于一体，并带有模数转换的芯片，此驱动程序是通过IIC总线读取温湿度的，并可已经转换为10进制了-sht11 is a temperature and humidity in one, with analog-to-digital converter chip, this driver through the IIC bus to read the temperature and humidity, and 10 have been converted to a hexadec