Decode Robot V1

These two PCBs were designed for FIRST Tech Challenge. One was supposed to be a color sensor that used an RGB photodiode with op amps to get the purple value (r+b) and the green value, then compare them with a comparator for a digital output. There is also an optoreflector for proximity. The second was supposed to send encoder, camera, LED, and analog sensor all over 1 USB cable, but the USB cable dropped the signal voltage by a lot for some reason..