grbl/script/simple_stream.py

42 wiersze
1.2 KiB
Python
Executable File

#!/usr/bin/env python
"""\
Simple g-code streaming script for grbl
Provided as an illustration of the basic communication interface
for grbl. When grbl has finished parsing the g-code block, it will
return an 'ok' or 'error' response. When the planner buffer is full,
grbl will not send a response until the planner buffer clears space.
G02/03 arcs are special exceptions, where they inject short line
segments directly into the planner. So there may not be a response
from grbl for the duration of the arc.
"""
import serial
import time
# Open grbl serial port
s = serial.Serial('/dev/tty.usbmodem1811',9600)
# Open g-code file
f = open('grbl.gcode','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
# Stream g-code to grbl
for line in f:
l = line.strip() # Strip all EOL characters for consistency
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()