Convert a list of bits to a list of bytes

bits_to_bytes.dart

Uint16List bits2bytes(Uint16List bits) {
  int byteCnt = bits.length ~/ 8;
  Uint16List byteMsg = Uint16List(byteCnt);
  for (int i = 0; i < byteCnt; ++i) {
    Uint16List bitsOfByte = Uint16List.fromList(bits.getRange(i * 8, i * 8 + 8).toList());
    int byte = assembleBits(bitsOfByte);
    byteMsg[i] = byte;
  }
  return byteMsg;
}