Hi,
for 50$ robot, I am using the breadboard instead of the other pc board [to avoid soldering

]. I have some questions, greatly appreciate if somebody can help !!
1. in the 50$ tutorial, a column was left empty [seems G, besides the 28 dip socket]. seems, no components were placed in that column. is it ok? not sure, if they were connected through soldering or somehow.. wondering, if I use a breadboard, can I leave that column empty? or do I have to keep my components right beside the socket to be accessible for microcontroller?
2. for micro controller, the ports pd0 through pd4 are seems to be for servos. so, we placed 5 pin headers [3 5's]. But, in this 50$ robot, we only got 2 servos. So, wondering if we still need the other pins?
Greatly appreciate your help! Thanks!