Version 4
SHEET 1 880 680
WIRE 144 -64 96 -64
WIRE 272 -64 144 -64
WIRE 432 -64 272 -64
WIRE 144 -48 144 -64
WIRE 272 32 272 -64
WIRE 144 48 144 32
WIRE 144 48 96 48
WIRE 224 48 144 48
WIRE 80 96 0 96
WIRE 432 112 432 -64
WIRE 272 144 272 128
WIRE 320 144 272 144
WIRE 144 160 144 144
WIRE 272 160 272 144
WIRE 208 240 144 240
WIRE 0 256 0 96
WIRE 144 256 144 240
WIRE 272 336 272 240
WIRE 432 336 432 192
FLAG 432 336 0
FLAG 144 336 0
FLAG 0 336 0
FLAG 272 336 0
FLAG 96 -64 UBatt
FLAG 96 48 UGate
FLAG 320 144 OUT
FLAG 208 240 GPIO
SYMBOL voltage 432 96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(15 55 40m 1 0 1)
SYMBOL voltage 144 240 R0
WINDOW 3 -125 132 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(5 0 1m 10n 10n 100m 200m)
SYMBOL npn 80 48 R0
SYMATTR InstName Q1
SYMATTR Value BCX41
SYMBOL pmos 224 128 M180
SYMATTR InstName M1
SYMATTR Value RSJ250P10
SYMBOL res 128 -64 R0
SYMATTR InstName R1
SYMATTR Value 4k7
SYMBOL voltage 0 240 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value 5
SYMBOL res 128 144 R0
SYMATTR InstName R2
SYMATTR Value 2k0
SYMBOL res 256 144 R0
SYMATTR InstName R3
SYMATTR Value 5.5
TEXT 0 8 Left 2 !.tran 0 1.1 1m startup