upload of text strings works. Including hand crafted german umlaut chars.

speed is hardcoded at 4
mode is hardcoded at 0 (aka scroll to left)

doc/ABCDE.txt

@@ -206,6 +206,8 @@ Leftover Capture Data: 77616e67000000004040404040404040001a001a001f0011...
 0010  b5 91 7f 5c 00 00 00 00 d0 d4 07 00 8d ff ff ff   ...\............
 0020  40 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00   @...@...........
 0030  01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
+
+
 0040  77 61 6e 67 00 00 00 00 40 40 40 40 40 40 40 40   wang....@@@@@@@@
 line lengths:
          26    26    31    17
@@ -314,7 +316,9 @@ Leftover Capture Data: 00386cc6c6fec6c6c6c60000fc6666667c666666fc00007c...
 0010  b5 91 7f 5c 00 00 00 00 84 d9 07 00 8d ff ff ff   ...\............
 0020  40 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00   @...@...........
 0030  01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00   ................
-0040  00 38 6c c6 c6 fe c6 c6 c6 c6 00 00 fc 66 66 66   .8l..........fff
+
+0040  00 38 6c c6 c6 fe c6 c6 c6 c6 00
+                                       00 fc 66 66 66   .8l..........fff
 0050  7c 66 66 66 fc 00 00 7c c6 c6 c0 c0 c0 c6 c6 7c   |fff...|.......|
 0060  00 00 fc 66 66 66 66 66 66 66 fc 00 00 fe 66 62   ...fffffff....fb
 0070  68 78 68 62 66 fe 00 00 fe 66 62 68 78 68 60 60   hxhbf....fbhxh``

led-badge-11x44.py

@@ -2,13 +2,15 @@
 #
 # (C) 2019 juergen@fabmail.org
 #
-# This is an upload tool for e.g. 
+# 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
+#
+# Requires:
+#  sudo apt-get install python3-evdev
 
+import sys, os, array, time
+import usb.core
 
 font_11x44 = (
   0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00,
@@ -37,6 +39,7 @@ font_11x44 = (
   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,
+
   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,
@@ -63,6 +66,7 @@ font_11x44 = (
   0x00, 0x00, 0x00, 0x00, 0xc6, 0x6c, 0x38, 0x38, 0x6c, 0xc6, 0x00,
   0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0x7e, 0x06, 0x0c, 0xf8,
   0x00, 0x00, 0x00, 0x00, 0xfe, 0x8c, 0x18, 0x30, 0x62, 0xfe, 0x00,
+
   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,
@@ -112,12 +116,21 @@ font_11x44 = (
   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,
+
+  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$%&/()=?`  \\}][{' + \
-          "@ ~ |<>,;.:-_#'+* "
+          '0987654321^ !"\0$%&/()=?` °\\}][{' + \
+          "@ ~ |<>,;.:-_#'+* " + "äöüÄÖÜß"
 
 char_offset = {}
 for i in range(len(charmap)):
@@ -138,18 +151,48 @@ proto_header = (
   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
+def header(args):
+  """ len(args[0]) is the number of chars of the first text
   """
+  lengths = []
+  for l in range(len(args)):
+    lengths.append(len(args[l]))
+
   h = list(proto_header)
   for i in range(len(lengths)):
     h[17+2*i] = lengths[i]
   return h
-  
 
-text = sys.argv[1]
+if len(sys.argv) < 2:
+  print("Usage:\n\n  %s Message1 [Message2 .. 8]\n" % (sys.argv[0]))
+  sys.exit(0)
+
+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))
+
+
+buf = array.array('B')
+buf.extend(header(sys.argv[1:]))
+
+for text in sys.argv[1:]:
+  # print(text)
+  for c in text:
+    # print(bitmap(c))
+    buf.extend(bitmap(c))
+
+needpadding = len(buf)%64
+if needpadding:
+  buf.extend( (0,) * (64-needpadding) )
 
-print(text)
-print(header([len(text),0,0,0]))
-for c in text: print(bitmap(c))
+# print(buf)
+for i in range(int(len(buf)/64)):
+  time.sleep(0.1)
+  dev.write(1, buf[i*64:i*64+64])