In this tutorial, we will learn how to interface a switch(push button) with ATMEGA16 using AVR studio. In the previous video, we learnt how to interface LEDs with ATMEGA16 using AVR studio. The push-button is a component that connects two points in a circuit when you press it. The example turns on an LED when you press the button. Here we have connected two push button to PORT C in PC0 & PC1. And for LEDs connection please refer my previous blog. Components Required:- AVR Controller(Atmega16) LEDs Push Button Connecting Wires USBASP Programmer Dump the following code after connection and select chip ATMEGA 16. #include<avr/io.h> #include<util/delay.h> void main() { DDRB=0b11111111; int S1; int S2; while(1) { S1=PINC&0b00000001; S2=PINC&0b00000010; if(S1==0b00000001) { PORTB=0b00000001; _delay_ms(100); } if(S2==0b00000010) { PORTB=0b00000010; _delay_ms(100);