Hi, I just built the board for the $50 robot and it worked, my first ever electronics project so i was suprised!. I figured why not try and use a diffrent chip with more memory and I/O so i got a atmega644. The pins are diffrent so i looked at the data sheet and made my own drawing of what i think the circuit should look like and also added in a rs232 shifter. Can someone take a look and see if i have the right idea? The circles are where wires attach to each other and the components. It's not the best drawing but again im new here.
