def exit_gracefully(signum, frame):
# restore the original signal handler as otherwise evil things will happen
# in raw_input when CTRL+C is pressed, and our signal handler is not re-entrant
signal.signal(signal.SIGINT, original_sigint)
if input("\nReally quit? (y/n)> ").lower().startswith("y"):
ljm.cleanInterval(interval_handle)
ljm.close(handle)
sys.exit(0)
# restore the exit gracefully handler here
signal.signal(signal.SIGINT, exit_gracefully)
# Read AIN0
result = ljm.eReadName(handle, name)
# Print results
print("%s reading: %f V, duration: %0.1f ms, skipped intervals: %i" %
(name, result, duration, numSkippedIntervals))
f.write("%s, %0.1f, %0.3f\r\n" % (curTimeStr, duration, result))
lastTick = curTick
curIteration = curIteration + 1
except KeyboardInterrupt:
break
except Exception:
import sys
print(sys.exc_info()[1])
break
print("\nFinished!")
#Get the final time
appEndTime = datetime.datetime.now()
# endTimeStr = appEndTime.isoformat(timespec='milliseconds')
endTimeStr = appStartTime.strftime("%Y/%m/%d %I:%M:%S%p")
print("The final time is: %s" % (endTimeStr))
# Close file
f.close()
# Close handles
ljm.cleanInterval(intervalHandle)
ljm.close(handle)
num_read_frames = len(read_names)
print("\nStarting %s read loops.%s\n" % (str(loopAmount), loopMessage))
interval_handle = 1
ljm.startInterval(interval_handle,
100000) # Delay between readings (in microseconds)
dac_out = 0
while True:
try:
results = ljm.eReadNames(handle, num_read_frames, read_names)
time = datetime.now()
labjack_value_0 = results[0]
print("Time: {} Value: {:.3f} V".format(time, labjack_value_0))
ljm.waitForNextInterval(interval_handle)
ljm.eWriteNames(handle, 1, ["DAC0"], [dac_out])
if dac_out < 5:
dac_out += 0.05
else:
dac_out = 0
except Exception:
print(sys.exc_info()[1])
break
# Close handles
ljm.cleanInterval(interval_handle)
ljm.close(handle)
