(Please help me with these questions)
1) I am not able to understand what is the device used in advance line following robot schematic at the lower left corner with three pins which looks as a triangle in shape.
2) In advance line following robot schematic status led is showing 3 wires and in led there are only 2.
3) In sensor schematic where i have to connect wires on sensor board that will join the sensor array in advance line following robot schematic.
thanks.