[BRLTTY] help with documentation of how to make a braille controller

discapacidad5 discapacidad5 at gmail.com
Wed Dec 29 19:41:30 EST 2021


I am developing a braille display in esp32 with ardiuno and c ++. Can
anyone help me with documentation or sample codes on how to make a
controller for brltty?


I have connected my esp32 to Android via Bluetooth and I receive the
following data on the esp32 console. How do I respond so that it recognizes
me as a braille display and starts sending me braille data?


hex     ancci  date
FC       252        ⸮
FC       252        ⸮
20         32
25        37        %
2C       44        ,
5B       91         [
56      86        V
FD    253       ⸮
FD    253       ⸮

3F     63        ?
3F    63      ?
50    80     P
50    80    P
53    83    S
49  73    I
53  83  S
58  88  X
51  81  Q
58 88   X
4C  76  L
58  88  X
FB 251 ⸮
FB 251 ⸮
20  32

FD 253 ⸮

FD 253 ⸮
FB 251 ⸮
FB 251 ⸮
20 32
FD 253 ⸮
FD 253 ⸮
FB 251 ⸮
FB 251 ⸮
20 32
FD 253 ⸮
FD  253  ⸮

FC  252 ⸮
FC 252 ⸮
20 32
 FD 253 ⸮
FD 253 ⸮
FC 252 ⸮
FC 252 ⸮
20 32
 4F 79 O
55 85 U
4E 78 N
FD 253 ⸮
FD 253 ⸮
FC 252 ⸮
FC 252 ⸮
20 32
43 67 C
57 87 W
47 71 G
5E 94 ^
5E 94 ^
7D 125 }
2B 43 +
39 57 9
5B 91 [
FD 253 ⸮
FD 253 ⸮
FC 252 ⸮
FC 252 ⸮
20 32
4F 79 O
55 85 U
4E 78 N
FD 253 ⸮
FD 253 ⸮
3F 63 ?
3F 63 ?
50 80 P
50 80 P
53 83 S
49 73 I
53 83 S
58 88 X
51 81 Q
58 88 X
4C 76 L
58 88 X
FB 251 ⸮
FB 251 ⸮
20 32
FD 253 ⸮
FD 253 ⸮
FB 251 ⸮
FB 251 ⸮
20 32
FD 253 ⸮
FD 253 ⸮
FB 251 ⸮
FB 251 ⸮
20 32
FD 253 ⸮
FD 253 ⸮
FC 252 ⸮
FC 252 ⸮
20 32
 FD 253 ⸮
FD 253 ⸮
FC 252 ⸮
FC 252 ⸮
20 32
FD 253 ⸮
FD 253 ⸮
FC 252 ⸮
FC 252 ⸮
20 32
 43 67 C
57 87 W
47 71 G
5E  94 ^
5E 94 ^
7D 125 }
2B 43 +
39  57  9
5B 91 [
FD  253  ⸮
FD  253  ⸮
FC  252  ⸮
FC 252  ⸮
20 32
FD 253 ⸮
FD 253 ⸮
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