AM2301-based temperature and humidity tester of solar battery system

A tester of environmental parameters of solar energy based on ARM microprocessor of S3C2440A was introduced in this paper, the design of software and hardware and implementation methods were detailed expatiated. The environmental parameters which included temperature, humidity and illumination could be measured and displayed real-timely and adjusted the azimuth of cell panel. The data collected by the tester of would be transferred to the host computer through the industry bus of rs485 which would be Analyzed further and storage. A new single all-calibrated warm humidity sensor AM2301 which included a capacitive humidity sensing element and a NTC thermostat was introduced in this article. The sensor was widely used in the automatic control and intelligent detection field because of remarkable quality and fast response and higher performance-price ratio.