An application of this measure relative humidity by modules HIH4030 work with the board IOIO-Q by HIH4030 give out a voltage to the analog signal is in the range of 0.958 to 4.065 V the voltage. +3.3 V, which is higher than 80% RH to 100% RH humidity level is higher than the input voltage of the analog board and IOIO IOIO-Q, but the cost to get the humidity to 75% RH in the HIH4030 will. The voltage of +3.268 V, which comes out of the room, the humidity will be the usual 25 to 60% RH, so had to use IOIO-Q HIH4030 with it, but I use it in a humidity range from 0 to 75. % RH and RH in the Text View of the application of this length.