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nejemojo (Version 0.1.0)

NEJE

NeJe NEJE DK-8 Pro-5 500mW Laser Engraver tool. Loads and burns images on your NeJe mini-burner.

pre-commit.ci status

Usage

$ nejemojo --help

Usage: nejemojo [OPTIONS] COMMAND [ARGS]...

Options:
  -p, --port TEXT  The serial port  [default: /dev/ttyUSB0]
  --help           Show this message and exit.

Commands:
  box       Draws preview box
  burn      Burn the image
  burntime  Set the pulse burn time, the longer the darker
  erase     Erase image from eeprom
  home      Move to home position
  load      Load the image
  pause     Pause Neje burning
  read      Read from port
  reset     Reset Neje
  view      View the image

TTY settings

  • baud 57600
  • 8 data bits
  • 1 stop bit
  • parity none

Engraver protocol

msg description
0xf9 stop/reset
0xf1 start (Once issued incoming data will specify the position, data uses a modulus format.)
0xf2 pause
0xf4 engraving preview (visualizes bounding box)
0xf5 go up
0xf6 go down
0xf7 go left
0xf8 go right
0xf3 go to left corner
<time in hex default 0x3c (60ms)> burn time
0xfa set motor parameter <hex speed default = 0x23 (35ms)>
0xfb go to center
0xfc fast backward <parameter 0x55> fast forward <parameter 0xaa> recarve <parameter 0x77>
0xfe x8 erase + send picture (BMP specification Black & White 512x512px)

Install

Seems tkinter is not the dejour GUI lib it used to be, thats propably a good thing.

$ sudo pacman -S tk

Need to be able to use ttyUSBn as normal user.

$ sudo gpasswd -a $USER uucp

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