######################################### ezu3test.py ###################################
#  Test of Halverson's attempt at an easy interface to the LabJack U3 for student use.
#  This is the 2nd version.  The 1st version was called easyU3test.py     2/1/2015

import sys
mypath=sys.path[0]
if mypath.find('my_python') == -1:       #If true, then "my_python" could not be found
  print "Sorry.  You need to be in my_python for Halverson's program to work."
  print "(That''s because I am assuming that the tgraphlix.py and ezu3.py libraries are there.)"
  exit()
sys.path[0]=mypath[0:mypath.find('my_python')]+'my_python'

print "Use ^C to kill this program"
import u3
from ezu3 import *
from time import sleep
d = u3.U3() # Opens the first LabJackU3 found on the USB
u3setup(d,['ain','ain','din','din','dout','dout','dout','dout'])
blink_state=True
while True:
   V0=ain0(d)       #Read analog inputs
   V1=ain1(d)       #Analog inputs range from 0 to 2.4 Volts
   B2=din2(d)      #Read digital inputs
   B3=din3(d)
   s=format(V0,"4.2f")               #Print the value of analog input 0
   print "ain0=%s|" % s ,
   for i in range(0,int(5*V0)):      #Print a bunch of spaces then a "0"
      print " ",
   print "0",
   for i in range(0,13-int(5*V0)):   #Pad with blanks
      print " ",
   s=format(V1,"4.2f")               #Print the value of analog input 1
   print "|ain1=%s|" % s ,
   for i in range(0,int(5*V1)):      #Print a bunch of spaces then a "1"
      print " ",
   print "1",
   for i in range(0,13-int(5*V1)):   #Pad with blanks
      print " ",
   print "|",
   if not B2:
      print "2   ",
   else:
      print "  2 ",
   if not B3:
      print "3  ",
   else:
      print "  3",
   Temp=temperatureF(d)   
   s=format(Temp,"5.2f")               #Print the value of analog input 0
   print "|Temp=%s F" % s
   #Just for fun add blinking
   LED(d,blink_state)
   dout4(d,blink_state)
   dout5(d,not blink_state)
   dout6(d,blink_state)
   dout7(d,not blink_state)
   blink_state = not blink_state
   dac0out(d,V0*2)                 #Send analog input 0 to DAC 0 after multiplying by 2
   dac1out(d,V1*2)                 #Send analog input 1 to DAC 1 after multiplying by 2
   sleep(0.25)                     #Wait for 1/4 second before looping again