Sergey Pastor / grbl1

doc/script/simple_stream.py@0:8f0d870509fe, 2017-09-04 (annotated)

Committer:
Sergunb
Date:
Mon Sep 04 12:04:13 2017 +0000
Revision:
0:8f0d870509fe
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Sergunb 0:8f0d870509fe 1 #!/usr/bin/env python
Sergunb 0:8f0d870509fe 2 """\
Sergunb 0:8f0d870509fe 3 Simple g-code streaming script for grbl
Sergunb 0:8f0d870509fe 4
Sergunb 0:8f0d870509fe 5 Provided as an illustration of the basic communication interface
Sergunb 0:8f0d870509fe 6 for grbl. When grbl has finished parsing the g-code block, it will
Sergunb 0:8f0d870509fe 7 return an 'ok' or 'error' response. When the planner buffer is full,
Sergunb 0:8f0d870509fe 8 grbl will not send a response until the planner buffer clears space.
Sergunb 0:8f0d870509fe 9
Sergunb 0:8f0d870509fe 10 G02/03 arcs are special exceptions, where they inject short line
Sergunb 0:8f0d870509fe 11 segments directly into the planner. So there may not be a response
Sergunb 0:8f0d870509fe 12 from grbl for the duration of the arc.
Sergunb 0:8f0d870509fe 13
Sergunb 0:8f0d870509fe 14 ---------------------
Sergunb 0:8f0d870509fe 15 The MIT License (MIT)
Sergunb 0:8f0d870509fe 16
Sergunb 0:8f0d870509fe 17 Copyright (c) 2012 Sungeun K. Jeon
Sergunb 0:8f0d870509fe 18
Sergunb 0:8f0d870509fe 19 Permission is hereby granted, free of charge, to any person obtaining a copy
Sergunb 0:8f0d870509fe 20 of this software and associated documentation files (the "Software"), to deal
Sergunb 0:8f0d870509fe 21 in the Software without restriction, including without limitation the rights
Sergunb 0:8f0d870509fe 22 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
Sergunb 0:8f0d870509fe 23 copies of the Software, and to permit persons to whom the Software is
Sergunb 0:8f0d870509fe 24 furnished to do so, subject to the following conditions:
Sergunb 0:8f0d870509fe 25
Sergunb 0:8f0d870509fe 26 The above copyright notice and this permission notice shall be included in
Sergunb 0:8f0d870509fe 27 all copies or substantial portions of the Software.
Sergunb 0:8f0d870509fe 28
Sergunb 0:8f0d870509fe 29 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Sergunb 0:8f0d870509fe 30 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Sergunb 0:8f0d870509fe 31 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Sergunb 0:8f0d870509fe 32 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Sergunb 0:8f0d870509fe 33 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Sergunb 0:8f0d870509fe 34 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Sergunb 0:8f0d870509fe 35 THE SOFTWARE.
Sergunb 0:8f0d870509fe 36 ---------------------
Sergunb 0:8f0d870509fe 37 """
Sergunb 0:8f0d870509fe 38
Sergunb 0:8f0d870509fe 39 import serial
Sergunb 0:8f0d870509fe 40 import time
Sergunb 0:8f0d870509fe 41
Sergunb 0:8f0d870509fe 42 # Open grbl serial port
Sergunb 0:8f0d870509fe 43 s = serial.Serial('/dev/tty.usbmodem1811',115200)
Sergunb 0:8f0d870509fe 44
Sergunb 0:8f0d870509fe 45 # Open g-code file
Sergunb 0:8f0d870509fe 46 f = open('grbl.gcode','r');
Sergunb 0:8f0d870509fe 47
Sergunb 0:8f0d870509fe 48 # Wake up grbl
Sergunb 0:8f0d870509fe 49 s.write("\r\n\r\n")
Sergunb 0:8f0d870509fe 50 time.sleep(2) # Wait for grbl to initialize
Sergunb 0:8f0d870509fe 51 s.flushInput() # Flush startup text in serial input
Sergunb 0:8f0d870509fe 52
Sergunb 0:8f0d870509fe 53 # Stream g-code to grbl
Sergunb 0:8f0d870509fe 54 for line in f:
Sergunb 0:8f0d870509fe 55 l = line.strip() # Strip all EOL characters for consistency
Sergunb 0:8f0d870509fe 56 print 'Sending: ' + l,
Sergunb 0:8f0d870509fe 57 s.write(l + '\n') # Send g-code block to grbl
Sergunb 0:8f0d870509fe 58 grbl_out = s.readline() # Wait for grbl response with carriage return
Sergunb 0:8f0d870509fe 59 print ' : ' + grbl_out.strip()
Sergunb 0:8f0d870509fe 60
Sergunb 0:8f0d870509fe 61 # Wait here until grbl is finished to close serial port and file.
Sergunb 0:8f0d870509fe 62 raw_input(" Press <Enter> to exit and disable grbl.")
Sergunb 0:8f0d870509fe 63
Sergunb 0:8f0d870509fe 64 # Close file and serial port
Sergunb 0:8f0d870509fe 65 f.close()
Sergunb 0:8f0d870509fe 66 s.close()