anchor.diff:  
   write_triplet(Dir) ->
       assert_transaction(),
  -    grisp_i2c:msgs([?DS2482_I2C_ADR, {write, <<?CMD_1WT, Dir>>}]),
  +    Db = case Dir of 1 -> 16#ff; 0 -> 0 end,
  +    grisp_i2c:msgs([?DS2482_I2C_ADR, {write, <<?CMD_1WT, Db>>}]),
       timer:sleep(1),
       <<D:1, T:1, S:1, _:5>> = grisp_i2c:msgs([?DS2482_I2C_ADR,
                                                {read, 1, ?I2C_M_NO_RD_ACK}]),
  
positive.code:     end;
  check_status(<<_:7, 1:1>>) ->
      error(bus_reset_busy).
  
negative.code: 
  search() ->
      assert_transaction(),
      search(0, []).
  
  
  %--- Callbacks -----------------------------------------------------------------
  
  