Labels Milestones
BackDO-35 Pin header 2.54 mm spacing Pin header 2.54 mm spacing D Switch, three position, dual pole double throw, center OFF position K switch dual-pole double-throw DPDT 3pdt ON-ON D Double Pole Single Throw (SPST) switch, small symbol D Push button switch, normally open, two pins, 45° tilted D Momentary Switch, single pole double throw, separate symbols | | | | J2 | 1 | LED | Light emitting diode | Tayda | A-804 | | Tayda | A-553 | | | C3, C4, C5 | 3 | 2N3904 | Small Signal NPN Transistor, TO-92 KK254 Molex connector 2.54 mm spacing