The 23 I/O ports of ATmega8 are organised into 3 groups: Port B (PB0 to PB7) Port C (PC0 to PC6) Port D (PD0 to PD7) All of these I/O pins have secondary functions, which are shown in parenthesis on ...

Brain of the line follower robot is one Atmega8 microcontroller ... are the only possible conditions for a basic line follower robot. LFR-IR Sensor Card Circuit diagram Our LFR has two infrared sensor ...