Testing Device for DiSEqC-Switches using ATtiny13-20PI

This is my first AVR-project on this page. The DiSEqC-Tester allows to test DiSEqC-switches that uses 1.0 or 1.1 protocols. (DiSEqC-Switches with 2.0 and 2.1 protocol have backwards compatibility with 1.0 & 1.1 respectively and also may be tested). The device every second sends a DiSEqC-message that makes switch a DiSEqC-switch. Four LEDs are intended

Testing Device for DiSEqC-Switches using ATtiny13-20PI is a post from: ATMega32 AVR