#! /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. # # Requires: # sudo apt-get install python3-usb # # Optional for image support: # sudo apt-get install python3-pil # # v0.1, 2019-03-05, jw initial draught. HID code is much simpler than expected. # v0.2, 2019-03-07, jw support for loading bitmaps added. # v0.3 jw option -p to preload graphics for inline use in text. # v0.4, 2019-03-08, jw Warning about unused images added. Examples added to the README. import sys, os, re, array, time, argparse import usb.core __version = "0.4" font_11x44 = ( # 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x66, 0x66, 0x66, 0xfc, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc0, 0xc0, 0xc0, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0xfc, 0x00, 0x00, 0xfe, 0x66, 0x62, 0x68, 0x78, 0x68, 0x62, 0x66, 0xfe, 0x00, 0x00, 0xfe, 0x66, 0x62, 0x68, 0x78, 0x68, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc0, 0xc0, 0xce, 0xc6, 0xc6, 0x7e, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x3c, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x1e, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0xe6, 0x66, 0x6c, 0x6c, 0x78, 0x6c, 0x6c, 0x66, 0xe6, 0x00, 0x00, 0xf0, 0x60, 0x60, 0x60, 0x60, 0x60, 0x62, 0x66, 0xfe, 0x00, 0x00, 0x82, 0xc6, 0xee, 0xfe, 0xd6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x86, 0xc6, 0xe6, 0xf6, 0xde, 0xce, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x60, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xd6, 0xde, 0x7c, 0x06, 0x00, 0xfc, 0x66, 0x66, 0x66, 0x7c, 0x6c, 0x66, 0x66, 0xe6, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0x60, 0x38, 0x0c, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x7e, 0x7e, 0x5a, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x6c, 0x38, 0x10, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xd6, 0xfe, 0xee, 0xc6, 0x82, 0x00, 0x00, 0xc6, 0xc6, 0x6c, 0x7c, 0x38, 0x7c, 0x6c, 0xc6, 0xc6, 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x3c, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0xfe, 0xc6, 0x86, 0x0c, 0x18, 0x30, 0x62, 0xc6, 0xfe, 0x00, # 'abcdefghijklmnopqrstuvwxyz' 0x00, 0x00, 0x00, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0xe0, 0x60, 0x60, 0x7c, 0x66, 0x66, 0x66, 0x66, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc0, 0xc0, 0xc6, 0x7c, 0x00, 0x00, 0x1c, 0x0c, 0x0c, 0x7c, 0xcc, 0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xfe, 0xc0, 0xc6, 0x7c, 0x00, 0x00, 0x1c, 0x36, 0x30, 0x78, 0x30, 0x30, 0x30, 0x30, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xcc, 0xcc, 0x7c, 0x0c, 0xcc, 0x78, 0x00, 0xe0, 0x60, 0x60, 0x6c, 0x76, 0x66, 0x66, 0x66, 0xe6, 0x00, 0x00, 0x18, 0x18, 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x0c, 0x0c, 0x00, 0x1c, 0x0c, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0x78, 0x00, 0xe0, 0x60, 0x60, 0x66, 0x6c, 0x78, 0x78, 0x6c, 0xe6, 0x00, 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xec, 0xfe, 0xd6, 0xd6, 0xd6, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdc, 0x66, 0x66, 0x66, 0x66, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdc, 0x66, 0x66, 0x7c, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xcc, 0xcc, 0x7c, 0x0c, 0x0c, 0x1e, 0x00, 0x00, 0x00, 0x00, 0xde, 0x76, 0x60, 0x60, 0x60, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0x70, 0x1c, 0xc6, 0x7c, 0x00, 0x00, 0x10, 0x30, 0x30, 0xfc, 0x30, 0x30, 0x30, 0x34, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0x6c, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xd6, 0xd6, 0xd6, 0xfe, 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0x6c, 0x38, 0x38, 0x6c, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0x7e, 0x06, 0x0c, 0xf8, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x8c, 0x18, 0x30, 0x62, 0xfe, 0x00, # '0987654321^ !"\0$%&/()=?` °\\}][{' + "@ ~ |<>,;.:-_#'+* " 0x00, 0x7c, 0xc6, 0xce, 0xde, 0xf6, 0xe6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0x7e, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0x7c, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0xfe, 0xc6, 0x06, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x7c, 0xc6, 0xc0, 0xc0, 0xfc, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0xfe, 0xc0, 0xc0, 0xfc, 0x06, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x0c, 0x1c, 0x3c, 0x6c, 0xcc, 0xfe, 0x0c, 0x0c, 0x1e, 0x00, 0x00, 0x7c, 0xc6, 0x06, 0x06, 0x3c, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x7c, 0xc6, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc6, 0xfe, 0x00, 0x00, 0x18, 0x38, 0x78, 0x18, 0x18, 0x18, 0x18, 0x18, 0x7e, 0x00, 0x38, 0x6c, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x3c, 0x3c, 0x3c, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, 0x66, 0x66, 0x22, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0x04, 0x14, 0x18, 0x10, 0x10, 0x20, 0x10, 0x7c, 0xd6, 0xd6, 0x70, 0x1c, 0xd6, 0xd6, 0x7c, 0x10, 0x10, 0x00, 0x60, 0x92, 0x96, 0x6c, 0x10, 0x6c, 0xd2, 0x92, 0x0c, 0x00, 0x00, 0x38, 0x6c, 0x6c, 0x38, 0x76, 0xdc, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0x00, 0x02, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x80, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x30, 0x30, 0x18, 0x0c, 0x00, 0x00, 0x30, 0x18, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0x0c, 0x18, 0x18, 0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x10, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x7c, 0x00, 0x10, 0x28, 0x28, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x02, 0x00, 0x00, 0x00, 0x70, 0x18, 0x18, 0x18, 0x0e, 0x18, 0x18, 0x18, 0x70, 0x00, 0x00, 0x3c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x3c, 0x00, 0x00, 0x3c, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x3c, 0x00, 0x00, 0x0e, 0x18, 0x18, 0x18, 0x70, 0x18, 0x18, 0x18, 0x0e, 0x00, # "@ ~ |<>,;.:-_#'+* " 0x00, 0x00, 0x3c, 0x42, 0x9d, 0xa5, 0xad, 0xb6, 0x40, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x08, 0x7c, 0x08, 0x08, 0x18, 0x18, 0x28, 0x28, 0x48, 0x18, 0x00, 0x18, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x00, 0x00, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x10, 0x20, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x18, 0x18, 0x08, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 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, 0x00, 0x00, 0x00, 0x66, 0x3c, 0xff, 0x3c, 0x66, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, # "äöüÄÖÜß" 0x00, 0xcc, 0xcc, 0x00, 0x78, 0x0c, 0x7c, 0xcc, 0xcc, 0x76, 0x00, 0x00, 0xc6, 0xc6, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0xcc, 0xcc, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x76, 0x00, 0xc6, 0xc6, 0x38, 0x6c, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0xc6, 0xc6, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0xc6, 0xc6, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x3c, 0x66, 0x66, 0x66, 0x7c, 0x66, 0x66, 0x66, 0x6c, 0x60, ) charmap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' + \ 'abcdefghijklmnopqrstuvwxyz' + \ '0987654321^ !"\0$%&/()=?` °\\}][{' + \ "@ ~ |<>,;.:-_#'+* " + "äöüÄÖÜß" char_offset = {} for i in range(len(charmap)): char_offset[charmap[i]] = 11 * i bitmap_preloaded = [ ([],0) ] bitmaps_unused = False def bitmap_char(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. """ if ord(ch) < 32: global bitmaps_unused bitmaps_unused = False return bitmap_preloaded[ord(ch)] o = char_offset[ch] return (font_11x44[o:o+11],1) def bitmap_text(text): """ returns a tuple of (buffer, length_in_byte_columns_aka_chars) """ buf = array.array('B') cols = 0 for c in text: (b,n) = bitmap_char(c) buf.extend(b) cols += n return (buf, cols) def bitmap_img(file): """ returns a tuple of (buffer, length_in_byte_columns) """ from PIL import Image im = Image.open(file) print("preloading bitmap from file %s -> (%d x %d)" % (file, im.width, im.height)) if im.height != 11: sys.exit("%s: image height must be 11px. Seen %d" % (file, im.height)) buf = array.array('B') cols = int((im.width+7)/8) for col in range(cols): for row in range(11): byte_val = 0 for bit in range(8): bit_val = 0 x = 8*col+bit if x < im.width and sum(im.getpixel( (x, row) )) > 384: bit_val = 1 << (7-bit) byte_val += bit_val buf.append(byte_val) im.close() return (buf, cols) def bitmap(arg): """ if arg is a valid and existing path name, we load it as an image. Otherwise we take it as a string. """ if os.path.exists(arg): return bitmap_img(arg) return bitmap_text(arg) 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, speeds, modes): """ lengths[0] is the number of chars of the first text """ s = [int(x) for x in re.split(r'[\s,]+', speeds)] s = s + [s[-1]]*(8-len(s)) m = [int(x) for x in re.split(r'[\s,]+', modes)] m = m + [m[-1]]*(8-len(m)) h = list(proto_header) for i in range(8): h[8+i] = 16*s[i] + m[i] for i in range(len(lengths)): h[17+2*i] = lengths[i] return h parser = argparse.ArgumentParser(description='Upload messages or graphics to a 44x11 led badge via USB HID. Version %s from https://github.com/jnweiger/led-badge-44x11 -- see there for more examples and for updates.' % __version, epilog="Example combining image and text (enter the ^A character as CTRL-V CTRL-A): sudo %s -p gfx/heart.png I^Ayou" % sys.argv[0]) parser.add_argument('-s', '--speed', default='4', help="Scroll speed. Up to 8 comma-seperated values (range 1..8)") parser.add_argument('-m', '--mode', default='0', help="Up to 8 mode values: Scroll-left(0) -right(1) -up(2) -down(3); still-centered(4) -left(5); drop-down(6); curtain(7); laser(8)") parser.add_argument('-p', '--preload', metavar='FILE', action='append', help="Load bitmap images. Use ^A, ^B, ^C, ... in text messages to make them visible") parser.add_argument('message', metavar='MSG_OR_FILENAME', nargs='+', help="Up to 8 message texts or image file names") args = parser.parse_args() dev = usb.core.find(idVendor=0x0416, idProduct=0x5020) if dev is None: print("No led tag with vendorID 0x0416 and productID 0x5020 found.") print("Connect the led tag and run this tool as root.") sys.exit(1) if dev.is_kernel_driver_active(0): dev.detach_kernel_driver(0) dev.set_configuration() print("using [%s %s] bus=%d dev=%d" % (dev.manufacturer, dev.product, dev.bus, dev.address)) if args.preload: for file in args.preload: bitmap_preloaded.append(bitmap_img(file)) bitmaps_unused = True msgs = [] for arg in args.message: msgs.append(bitmap(arg)) if bitmaps_unused == True: print("\nWARNING:\n Your preloaded images are not used.\n Try without '-p' or embed the control character '^A' in your message.\n") buf = array.array('B') buf.extend(header(list(map(lambda x: x[1], msgs)), args.speed, args.mode)) for msg in msgs: buf.extend(msg[0]) needpadding = len(buf)%64 if needpadding: buf.extend( (0,) * (64-needpadding) ) # print(buf) for i in range(int(len(buf)/64)): time.sleep(0.1) dev.write(1, buf[i*64:i*64+64])