/* start a looped timer*/

digraph {
  pad=0.5; bgcolor="lightgrey"; nodesep=1;
  node [shape="box"; style="filled";  fillcolor="cyan"];
  edge [labelfontsize=10; minlen=2; labeldistance=3 ];
  RTB_IDLE -> RTB_FLASHING [taillabel="EVT_BUTTON"];
  RTB_FLASHING -> RTB_IDLE [taillabel="EVT_BUTTON"];
  RTB_FLASHING -> RTB_FLASHING [taillabel="EVT_TICK"];
}