Displaying Wind Meter Measurements to LCD

The wind meter project was built to interface with the windmill power storage as it displays the measurements via the LCD.

To get the current voltage and percent charge on the stored energy in the windmill batteries, the user toggles using a button. The toggle switch controls the unit to conserve power rather than keeping it always ON. This device is very useful during the generation of power and it is not considered as disposable. It can also be interfaced with other types of windmill.

An ATmega32 is used to build the circuit and is also used as the core of Avronics Kit. The system samples the voltage across the inputs attached to the windmill battery using the onboard analog to digital converter (ADC). The voltage reading is represented as a HEX number from 0×0 to 0×3ff which is converted into a binary coded decimal (BCD) percentage and voltage and then the LCD displays the values.

A common HD44780 compatible controller is used by the LCD which will require 8 data and 3 control I/O lines. The ATmega32 is much more powerful than what is need in this project reading analog signal.
Read more