Version 4
SHEET 1 932 680
WIRE 640 -272 544 -272
WIRE 640 -240 640 -272
WIRE 640 -240 624 -240
WIRE 624 -112 624 -160
WIRE 448 -80 288 -80
WIRE 448 -16 448 -80
WIRE 544 0 544 -272
WIRE -128 96 -208 96
WIRE 48 96 -128 96
WIRE -208 128 -208 96
WIRE 320 128 160 128
WIRE 400 128 384 128
WIRE 448 128 448 64
WIRE 448 128 400 128
WIRE 544 128 544 64
WIRE 544 128 448 128
WIRE 576 128 544 128
WIRE 720 128 640 128
WIRE 864 128 720 128
WIRE 928 128 864 128
WIRE 160 144 160 128
WIRE 160 144 112 144
WIRE 48 160 16 160
WIRE 16 192 16 160
WIRE 720 192 720 128
WIRE 720 192 16 192
FLAG -208 208 0
FLAG 288 0 0
FLAG 864 128 output
FLAG -128 96 trigger
FLAG 400 128 Vrc
FLAG 624 -112 0
SYMBOL Digital\\or 80 64 R0
WINDOW 3 -150 -22 Left 2
SYMATTR InstName A1
SYMATTR Value Vhigh=3.3V Vlow=0V
SYMBOL cap 384 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 470n
SYMBOL res 432 -32 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL Digital\\inv 576 64 R0
WINDOW 3 -11 8 Left 2
SYMATTR InstName A2
SYMATTR Value Vhigh=3.3V Vlow=0V
SYMBOL voltage -208 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0V 3.3V 1m 10u 10u 100us 10ms 1)
SYMBOL voltage 288 -96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 3.3V
SYMBOL schottky 560 64 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 640 -144 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 12k
TEXT -242 312 Left 2 !.tran 10ms