AVR Based Talking Calculator

This precise, user-friendly ATmega88 based talking calculator operates with real numbers. It features the four basic operations (addition, subtraction, multiplication, and division) and several useful functions (e.g., change of sign (+/–), inverse (1/x), add with memory (M+), and read from memory (MR). Then after the calculator operates it displays the result on the LCD screen and also has the option to play the results via its speech engine.

AVR Talking Calculator:[Download Project][View Project PDF]