import struct
import matplotlib.pyplot as plt
import numpy as np

BinFile = "dual_entry.bin"

SigOut = []
SigIn = []
k = 0
i = 0
with open(BinFile, "rb") as f:
    byte = f.read(1)
    while byte != "" and k < (3*12000):
        # Do stuff with byte.
        byte = f.read(1)
        if len(byte)>0:
            i = (i+1)%4
            if (k%1000000 == 0):
                print k/1000000
            k = k+1
            if (i==0):
                outSigLB = ord(byte)
            elif (i==1):
                outSigHB = ord(byte)
            elif (i==2):
                inSigLB = ord(byte)
            elif (i==3):
                inSigHB = ord(byte)             

                if ((k > (900*4)) and (k< (2000*4))):
                    SigOut.append((outSigHB*256+outSigLB)*(3.3/750))
                    SigIn.append((inSigHB*256+inSigLB - 107.0)*(50.0E-3/15.0)) # removing the biais

0

f, axarr = plt.subplots(2, sharex=True)
axarr[0].plot(SigIn)
axarr[0].set_title('Signal In / Signal Out')
axarr[1].plot(SigOut)
plt.show()

SigOut = []
SigIn = []
k = 0
i = 0
with open(BinFile, "rb") as f:
    byte = f.read(1)
    while byte != "" and k < (3*12000):
        # Do stuff with byte.
        byte = f.read(1)
        if len(byte)>0:
            i = (i+1)%4
            if (k%1000000 == 0):
                print k/1000000
            k = k+1
            if (i==0):
                outSigLB = ord(byte)
            elif (i==1):
                outSigHB = ord(byte)
            elif (i==2):
                inSigLB = ord(byte)
            elif (i==3):
                inSigHB = ord(byte)             

                if ((k > (1700*4)) and (k< (2000*4))):
                    SigOut.append((outSigHB*256+outSigLB)*(3.3/750))
                    SigIn.append((inSigHB*256+inSigLB - 107.0)*(50.0E-3/15.0)) # removing the biais
f, axarr = plt.subplots(2, sharex=True)
axarr[0].plot(SigIn)
axarr[0].set_title('Signal In / Signal Out')
axarr[1].plot(SigOut)
plt.show()

0