====+ Parts List for E:\Photo_Trigger\PIC_version\schematic_v4.dsn +==== C1,C2,C3 3 10uF D2 1 1N4001 (any silicon diode) R1 1 220 Ohms B1 1 6V- 4 AA cells J2 1 Dual binding post J1,P1 2 DB9 U2,U3 2 IS471FE- optical IC D1 1 Red LED D3,D4 2 OED-EL-1L2 IR LED U1 1 PIC10F206 microcontroller K1 2 PRMA1A05B reed relay with internal protection diode S1 1 momentary pushbutton switch S2 1 power switch 1 battery holder (4 AA cells) 1 battery clip 1 box