A set of utilities for drones of all kinds

decode_hexspeak.py

#!/usr/bin/env python
import sys

zero = '⬡'
one = '⬢'
dronemap = {
  '0': zero,
  '1': one,
}

dronemap_rev = {
  zero: '0',
  one: '1',
}
printed = False
c = 0
r = ''

data = ''.join(dronemap_rev[a] for a in sys.stdin.read(-1) if a in dronemap_rev)
rem = len(data) % 8
if rem != 0:
  print("truncated signal... recovering.")
  data = data[0:len(data) - rem]
  assert len(data) % 8 == 0

bts = len(data) // 8
s = ''
for bit in range(bts):
  part = data[bit * 8:bit * 8 + 8]
  assert len(part) == 8
  n = chr(int(part, 2))
  s += n

print(s)

hexspeak.py

#!/usr/bin/env python
import sys

zero = '⬡'
one = '⬢'
dronemap = {
  '0': zero,
  '1': one,
}
printed = False
c = 0
r = ''
while c is not None:
   c = None
   try:
     c = sys.stdin.read(1)
   except EOFError:
     break
   if c is None or len(c) == 0:
     break
   printed = False
   b = bin(ord(c))[2:].zfill(8)
   d = ''.join(dronemap[a] for a in b)
   d = f'{d[:4]} {d[4:]} '
   r = f'{r}{d}'
   if c == '\n':
     r += '\n'
     print(r)
     r = ''
     printed = True

if not printed:
  print(r)

training_program.sh

#!/bin/sh
timeout 3600s watch -t -n 1 "date +'%H%M%S' | python hexspeak.py"