I tried running the software (feeding a 4.3 V input on channel 1 and leaving the rest floating). The software returns gibberish data(noise) for channel 0 and 0.000 for channel 1 (software initializes to this number). What is the problem?
Answer: This is a common problem. The problem arises whenever you connect only one channel on an analog input board and leave the other channels floating. These floating channels will induce a large amount of noise into the channel that is connected causing erroneous data. Always tie any unused channels to ground to prevent this problem.