The myavr learning program offers a range of extra packages for a wide range of learning and teaching tasks in the form of extra pcbs add ons pc guided experiments or complete projects with corresponding hardware extensions for the myavr boardadd ons are pcbs which can be connected to the myavr boards extension port and add to the function of the board examples of the extension modules available are the lcd add on mydigitalout temperature sensor real time clock eeprom and lab cards p