Embedded system is the core of every intelligent device. Every thing around you from a simple watch to the space ship is using embedded systems. Your mobile phones, PDAs, Washing Machines, Microwave Ovens, Automobile and all the automated electronics gadgets are having one or another form of embedded systems responsible for their intelligent functioning. Microcontrollers are the most important unit for every embedded system. Main aim of this Training module is to make the students skill full and efficient for all the hardware and software related concepts for AVR Microcontrollers. AVR is a new type of RISC architecture microcontroller which is influencing