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led-name-badge-ls32
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Upload tool for an led name tag with USB-HID interface
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led-name-badge-ls32/led-badge-11x44.py

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font bitmap encoding, as extracted from a name tag.
6 years ago
#! /usr/bin/python3
#
# (C) 2019 juergen@fabmail.org
#
# This is an upload tool for e.g.
# https://www.sertronics-shop.de/computer/pc-peripheriegeraete/usb-gadgets/led-name-tag-11x44-pixel-usb
# The font_11x44[] data was downloaded from such a device.
#
import sys, os
font_11x44 = (
0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00,
0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x66, 0x66, 0x66, 0xfc, 0x00,
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0x00, 0x6c, 0x6c, 0xfe, 0x6c, 0x6c, 0xfe, 0x6c, 0x6c, 0x00, 0x00,
0x18, 0x18, 0x08, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x18, 0x18, 0x7e, 0x18, 0x18, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
)
charmap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' + \
'abcdefghijklmnopqrstuvwxyz' + \
'0987654321^ !"\0$%&/()=?` \\}][{' + \
"@ ~ |<>,;.:-_#'+* "
char_offset = {}
for i in range(len(charmap)):
char_offset[charmap[i]] = 11 * i
def bitmap(ch):
""" Returns a tuple of 11 bytes,
ch = '_' returns (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255)
The bits in each byte are horizontal, highest bit is left.
"""
o = char_offset[ch]
return font_11x44[o:o+11]
proto_header = (
0x77, 0x61, 0x6e, 0x67, 0x00, 0x00, 0x00, 0x00, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
)
def header(lengths):
""" lengths[0] is the number of chars of the first text
"""
h = list(proto_header)
for i in range(len(lengths)):
h[17+2*i] = lengths[i]
return h
text = sys.argv[1]
print(text)
print(header([len(text),0,0,0]))
for c in text: print(bitmap(c))