#!/usr/bin/env python

"""\

Simple g-code streaming script for grbl

"""

import serial

import time

# Open grbl serial port

s = serial.Serial('/dev/tty.usbmodem1D1241', 115200, timeout=None)

# Open g-code file

f = open('../testwrite.nc', 'r');

# Wake up grbl

s.write("\r\n\r\n")

time.sleep(2) # Wait for grbl to initialize

s.flushInput() # Flush startup text in serial input

print "starting"

# Stream g-code to grbl

for line in f:

l = line.strip() # Strip all EOL characters for streaming

print 'Sending: ' + l,

s.write(l + '\n') # Send g-code block to grbl

grbl_out = s.readline() # Wait for grbl response with carriage return

print ' : ' + grbl_out.strip()

# Wait here until grbl is finished to close serial port and file.

raw_input(" Press <Enter> to exit and disable grbl.")

# Close file and serial port

f.close()

s.close()