60 lines
1.4 KiB
Python
Executable File
60 lines
1.4 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Simple script to stream a G-code file to a GRBL controller.
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"""
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import os
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import time
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import serial
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def stream(filename):
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"""Opens the given filename and streams it to GRBL."""
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usbs = [dev for dev in os.listdir("/dev/") if dev.startswith("ttyUSB")]
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for usb in usbs:
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try:
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s = serial.Serial(os.path.join("/dev/", usb), 115200)
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break
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except serial.serialutil.SerialException:
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continue
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else:
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print("Could not find any USB connections. Exiting.")
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return
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with open(filename, 'r') as file:
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data = file.read().splitlines()
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len_cmds = len(data)
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progress = []
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# Wake up grbl
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s.write(b"\r\n\r\n")
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time.sleep(2) # Wait for grbl to initialize
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s.flushInput() # Flush startup text in serial input
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for n, line in enumerate(data):
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l = line.strip().encode("utf-8") # Strip all EOL characters for consistency
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# print('Sending: ' + str(l))
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s.write(l + b"\n") # Send g-code block to grbl
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grbl_out = s.readline() # Wait for grbl response with carriage return
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# print('Receive: ' + str(grbl_out).strip())
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percent = int(n/len_cmds)
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if not int(n/len_cmds) % 5:
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if not percent in progress:
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print(str(percent) + "%")
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progress.append(percent)
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s.close()
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if __name__ == "__main__":
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import argparse
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parser = argparse.ArgumentParser(
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description="Streams the G-code file to GRBL.")
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parser.add_argument(
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"filename",
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help="The file to stream.")
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args = parser.parse_args()
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stream(args.filename)
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