This degree of humidity measures system, with the AT89 S52 single slice machine for core is give out sound by the speech, degree of humidity collect, the string go the function mold pieces, such as, the remote control electric circuit and the LED static state manifestation electric circuit...etc. to constitute. According to topic basic request, this system numbers off to the speech, degree of humidity collect, the LED static state manifestation electric circuit carried on the point design. Expanded a single slice machine outer circle to connect in addition, join a string, is hereafter expanded function to reserve space. This system absorbed the hardware software to turn of thought, greatly parts of functions pass software to carry out, making the electric circuit understand in brief, the system stability raises consumedly. This system not only succeed of carry out the basic function of [with] request, and increase some functions, carry on certain innovation. This degree of humidity measure the biggest advantage of the system as the accuracy that degree of humidity measure to have already come to a the industry standard, not only the cost is low and had the whole functions of hygrometer on the market.
Key word: Single slice the machine LED static state manifestation control from a distance a speech