I'm trying to build the $50 robot pretty much following the instructions exactly, except I'm using a 9V battery for the circuit and 4xAAs for the servos. I've finished building the circuit and I'm relatively confident it's OK because I used a multimeter on it and its reading 9V on the sensor power bus and 5V on pin 1 of the AVR ISP connector.
The problem now is that when I connect the cord into the serial port of my PC nothing happens. I'm using the AVR ISP kit, the one where there is a cord connecting my chip to the kit, then another cord connecting the kit to the PC via the serial port.
So I open up AVR Studio, follow the instructions in Step 4 then I click on 'Connect to the Selected AVR Programmer' and it can't find the connection!
I'm sure the cables are connected and lined up properly as in Pin 1 aligns with Pin 1, etc... I've checked this a dozen times.
Any ideas on what is going wrong?