checkpoint_3_5.py

from webiopi.devices.analog import MCP3208
import pylab
import numpy as np
import datetime

ADC0 = MCP3208(chip = 0)
time = datetime.datetime.now().microsecond
print("Time: {0}").format(time)

print("Analog Channel Count {0}").format(ADC0.analogCount())
print("Analog Bit Resolution  {0}").format(ADC0.analogResolution())
print("Analog Maximum {0}").format(ADC0.analogMaximum())
print("Analog Reference Voltage {0}").format(ADC0.analogReference())

x = [0.0]*100
y = [0.0]*100

for i in range(len(x)):
  y[i] = ADC0.analogRead(3)
  x[i] = datetime.datetime.now().microsecond - time

pylab.plot(x, y)
pylab.xlabel('Time in micro seconds')
pylab.ylabel('Bit Resolution')
pylab.title('Bit Resolution vs Time in micro seconds.')
pylab.grid(True)
pylab.savefig("sample_3_5.pdf")
pylab.show()