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Arduino Codes for Mr. General IR Compound Eye


I've downloaded the codes titled "Mr__General_ATmega8_Object_Detect" and I'd need your help in some of the constants definied in the IOPin header file. I've tried searching around, including the datasheet, to no avail. As this is my first time working on a robot, any help would be deeply appreciated.

Do note that I did not purchase the entire Mr. General robot because I just needed the compound eye with the pan kit for object detection and avoidance. I'm using an Arduino Mega for my project.