Design of Digital Temperature and Humidity Data Recording Instrument
Dechao Sun · Modern Electronic Technique · 2005
To necessity of greenhouse temperature and humidity course data record, this text designs a suitable data recorder for temperature and humidity of greenhouse. This data recorder hardware adopts the newtype integrated sensor (LTM8901) of digital temperature and humidity and C8051F023 controller with large capacity FLASH memory, it can establish and record temperature and humidity value by hour within regular hour, realize the totally automatic record data needn′t attend to intervene for a fixed period of time. The data with structure of the hardware and record are reliable and using and maintaining the convenient characteristic.