This is a Micro controller based Automatic Weather Station which reflects state of the art micro controller based instrumentation design. Both wind speed and direction sensors can be attached with this data logger for collection of real time data automatically. The micro controller converts analog signals from these sensors to digital format. The micro controller has their individual operating software's programmed in their internal EEPROMS and the data acquired by them is stored in their internal data RAM. This micro controller remains in sleep mode and wakes up only when either a signal from the sensor is available or when they receive control signals from the master controller for acquiring the stored data. The micro controller has its internal memory along with an additional 512K EEPROM, a real time clock with an LCD (16 X 2) to display the instrument status. The Automatic Weather Station is good for its robust construction, trouble free performance, low maintenance, and high durability.